our ultimate checklist
Pore-Clogging Ingredients
Here is the list of ingredients known to clog pores + promote acne, avoid these ingredients in all of the products that touch your skin: laundry detergents, skin care, makeup + hair products.
#
1-Acetoxyhexadecane
This ingredient is an ester and can be comedogenic. It can clog pores and lead to breakouts, especially in individuals with oily or acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
1-Hexadecanol Acetate
Also known as cetyl acetate, this ingredient can be comedogenic and may contribute to clogged pores and acne formation.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
A — D
Acetic Acid Hexadecyl Ester
Similar to other esters, this can be comedogenic. It can block pores and contribute to the development of acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Acetylated Lanolin
This is a modified form of lanolin, which is highly comedogenic. It can form a barrier on the skin, trapping oil and bacteria in the pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Acetylated Lanolin Alcohol
Similar to acetylated lanolin, this ingredient is comedogenic. It can clog pores and cause breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Acetylated wool fat
Derived from lanolin, it is comedogenic and can contribute to acne by blocking pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Acetylated wool wax
Another lanolin derivative, it is also comedogenic and can lead to clogged pores and acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Adansonia digitata L.
Generally non-comedogenic, but can cause breakouts in individuals with acne-prone skin or sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Agar
Typically non-comedogenic, but it can occasionally cause irritation or acne in very sensitive skin types when used in large amounts.
⚠︎ — Low Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 1 out of 5
Ahnfeltiopsis concinna extract
A form of Red Algae. Generally considered non-comedogenic, but can cause breakouts in some individuals due to individual sensitivities or allergic reactions.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Alaria esculenta extract
Also known as Brown Algae (yuck). Typically non-comedogenic, but some people may experience breakouts due to sensitivities or the presence of other comedogenic substances in the formulation.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Alga bladderwrack
Usually non-comedogenic, but can occasionally cause acne due to individual skin reactions or if mixed with other comedogenic ingredients.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Algae
A broad category, but generally algae are non-comedogenic. However, certain types can cause irritation or allergic reactions leading to acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Algae Extract
A broad category, but generally algae are non-comedogenic. However, certain types can cause irritation or allergic reactions leading to acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Algin
A broad category, but generally algae are non-comedogenic. However, certain types can cause irritation or allergic reactions leading to acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Alginate
Similar to algin, alginate is usually non-comedogenic but can cause irritation or allergic reactions in some people, leading to acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Alginic acid
This is a type of algae-derived polysaccharide, generally considered non-comedogenic, but could cause breakouts in sensitive individuals.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Aphanothece sacrum polysaccharide
This is a type of algae-derived polysaccharide, generally considered non-comedogenic, but could cause breakouts in sensitive individuals.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Arthrospira plantensis
Typically non-comedogenic and often used for its antioxidant properties. However, individual sensitivities can lead to breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Ascophyllum nodosum extract
This red algae extract is generally non-comedogenic, but like other algae extracts, it can cause irritation in sensitive individuals.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Asparagopsis armata extract
A form of Red algae with moderate risk.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Baobab
Similar to Adansonia digitata, generally non-comedogenic, but can cause breakouts in individuals with sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Beeswax
Beeswax is highly comedogenic and can form a barrier on the skin that traps oil, dirt, and bacteria, leading to clogged pores and acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Bismuth
Beeswax is highly comedogenic and can form a barrier on the skin that traps oil, dirt, and bacteria, leading to clogged pores and acne.
⚠︎ — Low Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 1 out of 5
Bismuth Oxychloride
Bismuth compounds, like bismuth oxychloride, can cause irritation and clogged pores in sensitive individuals, leading to acne.
⚠︎ — Low Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 1 out of 5
Bryopsis africana
This algae extract is generally non-comedogenic but can cause irritation or allergic reactions in some people, leading to acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Butyl Octadecanoate
This ester is comedogenic and can clog pores, leading to acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Butyl Stearate
This algae extract is generally non-comedogenic but can cause irritation or allergic reactions in some people, leading to acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Butyl Stearic Acid
Similar to butyl stearate, it is comedogenic and can clog pores, leading to acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Butyrospermum
Another form of Shea Butter, which is moderately comedogenic and can clog pores in some individuals, especially those with oily or acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Cacao seed butter
A form of Cocoa butter, it is highly comedogenic and can clog pores, leading to acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Carageenan gum
Carrageenan can be comedogenic and cause irritation, leading to acne breakouts in some individuals.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Carastay C
This ingredient may be comedogenic, leading to clogged pores and acne, especially in sensitive or acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Carrageenan
Carrageenan is known to be comedogenic and can cause clogged pores and irritation, leading to acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Carrageenan Moss
Similar to carrageenan, it is comedogenic and can cause acne by clogging pores and irritating the skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Caulerpa filiformis
Similar to other algae extracts, it is generally non-comedogenic but can cause irritation in sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Caulerpa lentillifera extract
Generally non-comedogenic, but can cause irritation or allergic reactions in some individuals, leading to breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Cera alba
A form of Beeswax, it is highly comedogenic and can form a barrier on the skin that traps oil, dirt, and bacteria, leading to clogged pores and acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Cera bianca
Also known as white beeswax, it is highly comedogenic and can form a barrier on the skin, trapping oil, dirt, and bacteria, leading to clogged pores and acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Cera flava
Known as yellow beeswax, it is similarly comedogenic and can cause acne by clogging pores and creating a barrier that traps impurities.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Cera olea
This ingredient, also known as olive wax, is moderately comedogenic and can contribute to clogged pores and acne in some individuals.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Cetearyl Alcohol + Ceteareth 20
When cetearyl alcohol and ceteareth-20 are used together, they can have a more pronounced effect on pore-clogging, potentially increasing the risk of acne breakouts for some individuals.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Cetyl Acetate
Cetyl acetate is comedogenic and can clog pores, leading to breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Chaetomorpha linum (aerea) cladophora radiosa
If you have acne-prone skin, it's generally recommended to be cautious when trying products containing algae extracts, includingChaetomorpha linum (aerea) cladophora radiosa.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Chlamydomonas reinhardtii Extract
This green algae extract is typically non-comedogenic, but sensitivities or reactions can cause breakouts in some individuals.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Chlorella
Generally considered non-comedogenic, but can cause irritation or allergic reactions in sensitive individuals, leading to acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Chlorophyceae
This class of green algae is usually non-comedogenic but can cause irritation or allergic reactions in some people, leading to breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Chondrus Crispus (aka Irish Moss or Carageenan Moss)
Known to be comedogenic, it can clog pores and cause irritation, leading to acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Cladophora cf. subsimplex
A type of algae extract — algae extract is often assigned a comedogenic rating of 5 on a scale of 0 to 5, where 5 indicates the highest likelihood of clogging pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Cladosiphon okamuranus extract
Typically used for hydration, but as with many seaweeds, some people will experience acne from it.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
collapsible content
Coal Tar
Very irritating and pore-clogging for some. Though used in psoriasis and dandruff treatments, it can trigger acne due to its occlusive and inflammatory properties.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Cocoa Butter
Highly comedogenic — known for clogging pores and causing breakouts, especially for oily or acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Coconut Alkanes
Derived from coconut, it is comedogenic in most formulations. Typically clogs pores and leads to breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Coconut Butter
Similar to coconut oil and cocoa butter, it's highly comedogenic and will clog pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Coconut Extract
Depending on the formulation, it is moderately comedogenic and may cause breakouts in acne-prone users.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Coconut Nucifera extract
This is another form of coconut extract. While nourishing, it's highly comedogenic and can cause clogged pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Coconut Oil
Highly comedogenic. It will clog pores and is often one of the top offenders for causing breakouts in acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Cocos nucifera oil
Same as coconut oil — very comedogenic, especially for those with oily or acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Cocos nucifera seed butter
Essentially the butter form of coconut oil — highly comedogenic and a common pore-clogger.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Coenochloris signiensis extract
A lesser-known algae derivative. Caution is advised due to the algae families tendency for irritation, especially on sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Colloidal Sulfur
Used to reduce oil and has antibacterial properties, but will cause irritation or dryness in sensitive, leading to reactive breakouts.
⚠︎ — Low Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 1 out of 5
Corallina officinalis extract
A red algae extract; often causes irritation and sensitivity.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Corn
As a food ingredient, corn is typically not an issue. But in oil or extract form, it can clog pores and cause irritation depending on your skin type.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Corn oil
Moderately comedogenic. Known to clog pores and cause breakouts, especially for oily or acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Cotton Awws Oil
Moderately comedogenic, can clog pores and lead to breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Cotton Seed Oil
Highly comedogenic. It can trap oils and bacteria in pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Creosote
Strong irritant. Not common in modern skincare products, but when used, it can be very irritating and occlusive, triggering acne and skin issues.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Cystoseira tamariscifolia extract
A brown algae extract. It may trigger breakouts in people sensitive to marine ingredients.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
D & C Red # 17
Synthetic dyes (especially reds) are known to be comedogenic, particularly in lip and cheek products. Can clog pores and cause breakouts around the mouth and cheeks.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
D & C Red # 21
Synthetic dyes (especially reds) are known to be comedogenic, particularly in lip and cheek products. Can clog pores and cause breakouts around the mouth and cheeks.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
D & C Red # 3
Synthetic dyes (especially reds) are known to be comedogenic, particularly in lip and cheek products. Can clog pores and cause breakouts around the mouth and cheeks.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
D & C Red # 30
Synthetic dyes (especially reds) are known to be comedogenic, particularly in lip and cheek products. Can clog pores and cause breakouts around the mouth and cheeks.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
D & C Red # 36
Synthetic dyes (especially reds) are known to be comedogenic, particularly in lip and cheek products. Can clog pores and cause breakouts around the mouth and cheeks.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Decyl Oleate
Highly comedogenic. It’s an ester of oleic acid and decanol, and it’s notorious for clogging pores and triggering breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Decyloleate
An alternate naming convention for Decyl Oleate — highly comedogenic, causes clogged pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Dicotyledons succinate
Very obscure ingredient and not often used in modern skincare; “dicotyledons” refers to a class of plants. If this is a plant oil-derived succinate, it will be moderately comedogenic, depending on fatty acid composition. All in all, we recommend staying away from this ingredient, especially if you have acne prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Dictyopteris membranacea
A brown algae extract — algae-based ingredients often cause irritation in sensitive users.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Dictyopteris polypodioides
A brown algae extract — algae-based ingredients often cause irritation in sensitive users.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Diethylhexyl sodium sulfosuccinate
A surfactant — mildly comedogenic and can be irritating in higher concentrations, leading to reactive acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Diisooctyl succinate
An emollient and ester — moderately to highly comedogenic, often cited as pore-clogging in acne-prone individuals.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Dilsea carnosa extract
A red algae extract — algae often causes irritation or allergic breakouts, especially those with sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Dioctyl sodium sulfosuccinate
A surfactant/emulsifier — it will irritate sensitive skin, often indirectly causing breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Dioctyl Succinate
Similar to other succinate esters — moderately comedogenic, can clog pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Disodium laureth sulfosuccinate
A gentler surfactant, lower risk of causing acne, but will still irritate sensitive skin, indirectly leading to breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Disodium Monooleamido
Derived from oleic acid, potentially comedogenic due to pore-clogging properties.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Disodium Monooleamido peg 2 sulfosuccinate
Mildly comedogenic; specifically the oleamido portion will clog pores in sensitive individuals.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Dodecanoic acid
Also known as lauric acid — while it has antibacterial properties, it’s comedogenic for most skin types.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Dodecoic acid
A variant of Dodecanoic/Lauric acid — making it moderately comedogenic.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Dodecylic acid
Alternate name for lauric acid — comedogenic, despite its antimicrobial benefits.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Dunaliella salina extract
A microalgae rich in beta-carotene — but it will trigger breakouts in sensitive or allergy-prone users.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Duodecylic acid
A variant of Dodecanoic/Lauric acid — moderately comedogenic.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Durvillaea antarctica extract
Brown seaweed extract — will irritate skin and trigger breakouts in individuals with sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
E — O
Ecklonia cava
A brown algae known for anti-inflammatory properties — generally non-comedogenic, but use caution if you have sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Ecklonia cava extract
A brown algae known for anti-inflammatory properties — generally non-comedogenic, but use caution if you have sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Ecklonia radiata
A type of brown kelp — can irritate sensitive skin, especially in leave-on products.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Enteromorpha compressa extract
A green algae — individuals can experience irritation or breakouts from this ingredient.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Ethoxylated Lanolin
A derivative of lanolin, which is highly comedogenic. It forms a barrier that traps oils and debris, leading to clogged pores and breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Ethylhexyl Palmitate
Very comedogenic. This fatty acid ester mimics natural sebum and can clog pores easily.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Ethylhexyl Stearate
Similar to palmitate, highly comedogenic, often found in moisturizers and makeup.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Eucheuma spinosum extract
A red algae (seaweed) extract. Generally non-comedogenic, but will trigger breakouts in sensitive skin or if mixed with other comedogenic ingredients.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Fucoxanthin
A pigment found in brown algae - mildly comedogenic, especially for those with more sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Fucus serratus
A type of brown seaweed — lower risk, but algae will cause irritation for sensitive users, often leading to acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Fucus vesiculosus
Commonly known as bladderwrack — generally non-comedogenic, but will cause reactive acne to sensitive skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Gamtae extract
Korean name for seaweed (typically Enteromorpha) — often irritates sensitive skin types.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Gelidiella acerosa extract
Red algae — algae-based ingredients can cause breakouts due to sensitivity or occlusion.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Gelidium amansii extract
A red algae — low comedogenicity, but irritation-prone users may react.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Gigartina stellata extract
Red algae — generally safe, but watch for algae sensitivity as it can cause breakouts in some.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Glyceryl monostearate
Moderately comedogenic. It's a fatty acid ester that can block pores in acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Glyceryl Stearate SE
Moderately comedogenic - may cause breakouts depending on concentration and formulation. Due to this, it's often best to stay away!
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Glyceryl-3 Diisostearate
This ingredient is a synthetic ester known for its emollient and emulsifying properties. Moderately comedogenic - may cause breakouts depending on concentration and formulation. Due to this, it's often best to stay away!
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Glycine max
Also know as soybean - moderately comedogenic depending on its form (oil, protein extract). We recommend staying away from this ingredient.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Glycine soja oil
Moderately comedogenic. It’s an occlusive oil that can trap sebum and bacteria in pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Gracilariopsis chorda extract
A red algae — may cause breakouts in individuals with algae sensitivities.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Haematococcus pluvialis
A microalgae high in astaxanthin — may cause irritation or reactions in sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Haematococcus pluvialis extract
A microalgae high in astaxanthin — may cause irritation or reactions in sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Haslea ostrearia extract
Blue microalgae — very rare in modern skincare products, but often causes irritation in sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Hexadecanol acetate
Alternate name for cetyl acetate — highly comedogenic, known to clog pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Hexadecyl Acetate
Alternate name for cetyl acetate — highly comedogenic, known to clog pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Hexadecyl Alcohol
Also known as cetyl alcohol — mildly comedogenic. Some tolerate it fine, but others break out depending on concentration. We recommend staying away from using this ingredient.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Himanthalia elongata extract
Brown seaweed — may cause breakouts in those reactive to algae or sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Hizikia fusiforme extract
A brown seaweed used often in Asian skincare — typically non-comedogenic, though it often causes acne-like irritation in sensitive individuals.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Hydrogenated Vegetable Oil
Highly comedogenic. Occlusive and pore-clogging — known to cause breakouts in acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Hydrolyzed rhodophycea extract
Red algae — usually non-comedogenic on its own, but when combined with other rich emulsifiers, can be problematic for oily skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Hydrous magnesium silicate
AKA Talc - it's controversial. It’s not pore-clogging on its own, but it will trap oils and bacteria under your makeup, leading to breakouts.
⚠︎ — Low Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 1 out of 5
Hypnea musciformis extract
Another red algae — can cause acne due to algae sensitivity or over-moisturizing effects.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Hypneaceae extract
Family of red algae — can cause acne due to algae sensitivity or over-moisturizing effects.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Irish Moss
Comedogenic for many. It can clog pores and is known to be an irritant or breakout trigger for acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Isocetyl Alcohol
A fatty alcohol — moderately comedogenic, can trap oils and debris in pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Isocetyl Stearate
A highly comedogenic ester. Known to clog pores, especially in leave-on products.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Isodecyl Oleate
A lightweight ester, but moderately to highly comedogenic. Can cause breakouts in oily or acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Isohexadecyl alcohol
A synthetic alcohol, can clog pores if used in higher concentrations or occlusive formulas.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Isohexadecyl stearate
Highly comedogenic. This ester is known to cause breakouts in acne-prone skin due to its pore-clogging properties.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Isooctadecyl isooctadecanoate
Very comedogenic. It's a long-chain ester with a high tendency to clog pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Isopalmitic alcohol
A fatty alcohol — moderately comedogenic, depending on concentration and skin type.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Isopalmityl alcohol
A fatty alcohol — can trap oil and debris, leading to blocked pores and breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Isopropyl isodecanoate
Moderately comedogenic. Common in moisturizers and foundations. Can clog pores in acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Isopropyl Isostearate
Highly comedogenic. Very commonly flagged ingredient for causing breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Isopropyl Linolate
While linoleic acid is acne-friendly, this ester form is comedogenic and can clog pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Isopropyl Myristate
A general category for esters of myristic acid; many are highly comedogenic and can block pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Isopropyl Palmitate
Very comedogenic. Known pore-clogger. Can rapidly worsen acne when used in leave-on products.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Isostearyl Isostearate
Highly comedogenic. Included on our “do not use ever” list for any individual.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Isostearyl Neopentanoate
Highly comedogenic. Known to clog pores depending on concentration. We typically recommend staying away from it.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
collapsible content
Jania rubens extract
A red algae extract — like most algae, can irritate sensitive or acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Jojoba wax
Low comedogenicity. In wax form or heavy blends, it can clog pores in sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Kappaphycus alvarezii extract
A type of red algae (carrageenan source) — comedogenic and known to cause breakouts in sensitive or acne-prone users.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Karite
Also known as shea butter, it’s rich and emollient, but its heavy texture can clog pores, especially in acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Kelp
Kelp is a type of seaweed high in iodine, which has been linked to breakouts and irritation in sensitive or acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Kousou ekisu
This plant extract may be comedogenic due to its rich composition, which can disrupt the skin barrier and clog pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Laminaria
A seaweed extract, often high in iodine, which may contribute to breakouts in sensitive or acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Laminaria Digitata Extract
This specific type of seaweed is iodine-rich, which may stimulate acne flare-ups in some individuals.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Laminaria Saccharina Extract (Laminaria Saccharine)
A seaweed extract, often high in iodine, which may contribute to breakouts in sensitive or acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Lanolin acetate
A lesser-known algae derivative. Caution is advised due to the algae families tendency for irritation, especially on sensitive skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Lanolin alcohol acetate
Highly comedogenic. This variant of lanolin can occlude the skin and cause pimples and bumps.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Lanolin polyoxyethylene ether
A synthetic lanolin derivative that may clog pores in individuals prone to breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Laureth-23
A surfactant and emulsifier that can be moderately comedogenic, leading to clogged pores with repeated use.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Laureth-4
Highly comedogenic; a common acne trigger found in many cosmetics and cleansers.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Lauric Acid
A fatty acid with antimicrobial properties, but very comedogenic and known to block pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Linolate
A derivative of linoleic acid that may be comedogenic depending on formulation and concentration.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Liquor carbonis detergens
Coal tar solution—highly occlusive and known to worsen acne in sensitive users.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Liquor picis carbonis
Also a form of coal tar, known to clog pores and cause irritation in acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Lithothamnium calcareum powder
A type of calcified algae, comedogenic due to its mineral-rich composition and occlusive texture.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Lpc
Lanolin-based compound; generally a pore-clogging ingredient for acne-prone individuals.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Macroalgae
Seaweed family, often iodine-rich, which can aggravate acne when applied topically.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Macrocystis pyrifera extract
Brown algae rich in iodine, which may contribute to breakouts in acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Mangifera indica seed butter
Otherwise known as Mango Seed Butter - Rich and nourishing, but comedogenic for many — known to block pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Mango Butter
It’s highly emollient and will trigger breakouts on oily or acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Marula
It can be too rich for oily skin types and may cause clogged pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Marula oil
Emollient and antioxidant-rich but may cause breakouts in acne-prone skin due to its heavy texture.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Methylsilanol mannuronate
A silicone-algae derivative used for hydration, but it may trap other ingredients and oils against the skin, leading to congestion.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Mink Oil
Very rich and highly comedogenic — strongly associated with clogged pores and acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Moss
Botanical extracts like moss can be rich and hydrating but may trigger acne through pore congestion or allergic responses.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Myristate
A general category for esters of myristic acid; many are highly comedogenic and can block pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Myristic Acid
A fatty acid that is known to be comedogenic and frequently contributes to acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Myristyl
Prefix usually denoting derivatives of myristic acid, many of which clog pores and exacerbate acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Myristyl Lactate
An emollient ester that can be comedogenic and problematic for breakout-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Myristyl Propionate
A synthetic ester that gives a smooth feel to the skin but is often comedogenic.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Octadecanoic acid
Also known as Stearic Acid - common fatty acid that is highly comedogenic and can cause breakouts in acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Octadecyl heptanoate
An emollient ester that may be pore-clogging depending on concentration and formulation. We recommend staying clear of it.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Octyl Palmitate
Very comedogenic — a known acne trigger due to its occlusive, waxy nature.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Octyl Stearate
Very comedogenic — it smooths skin but clogs pores easily.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Oleth-3
A surfactant that can disrupt the skin barrier and lead to pore congestion.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Oleyl Alcohol
A fatty alcohol that is considered moderately comedogenic and may cause breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
P — Z
Palmaria palmata extract
Red algae, potentially problematic for acne-prone users due to iodine and mineral content.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Palmityl Acetate
An ester that is often comedogenic, often used as an emollient in skincare.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Palmityl Alcohol
Fatty alcohol that can be comedogenic depending on skin type and product formulation.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Parkii
Also known as Shea Butter - Rich and moisturizing, but frequently clogs pores in oily and acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
PEG 16 Lanolin
Lanolin derivative known to clog pores, especially when combined with PEGs which can increase penetration and irritation.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
PEG 2 Sulfosuccinate
A surfactant that may be irritating or barrier-disrupting, leading to acne indirectly.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
PEG 200 Dilaurate
A synthetic compound that can be irritating or comedogenic, depending on formulation.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
PEG 8 Stearate
Emulsifier derived from stearic acid — moderately comedogenic and may cause breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
PEG-75
A lower molecular weight PEG that is often comedogenic, especially when combined with other occlusive agents.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Pelvetia canaliculata extract
A brown algae extract rich in iodine — potentially acne-triggering in sensitive users.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
PES
Depending on the full ingredient list, PES can be occlusive and may trap oil and bacteria.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
PG Monostearate
Can be moderately comedogenic and irritating for sensitive skin types.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
PGMS
Abbreviation of Propylene Glycol Monostearate - often clogs pores due to its waxy, emulsifying texture.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Phaeodactylum tricornutum extract
A type of microalgae with antioxidant benefits, but can be irritating or pore-clogging in acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Phaeophyceae
Brown seaweed family — commonly high in iodine, which may worsen acne in some.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Pix carbonis
Also known as coal tar — occlusive and known to irritate or clog pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Plankton
General term for marine extracts — high in minerals and iodine, can cause flare-ups in some users.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Polyethylene glycol 200
PEG with relatively low comedogenicity, but may still irritate sensitive skin or disrupt the barrier.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Polyethylene glycol dodecyl ether
A surfactant that may disrupt the skin barrier and trap oil, leading to breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Polyethylene glycol jojoba acid
May clog pores due to the fatty acid component, despite being a modified oil.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Polyethylene glycol lauryl ether
Surfactant that can be irritating and possibly comedogenic when left on the skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Polyethylene glycol monododecyl ether
Can disrupt the skin barrier and clog pores depending on the product formulation.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Polyethylene glycol stearate
Derived from stearic acid — can be comedogenic in acne-prone users.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Polyglyceryl-3 Diisostearate
Often used in natural cosmetics but has a high comedogenicity — known pore-clogger.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Polyoxyethylene lauryl ether
Surfactant that may trap debris and disrupt barrier, increasing acne risk.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Polysiphonia elongata extract
A red algae extract — can be rich in iodine and lead to breakouts in sensitive skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Porphyra umbilicalis
A red algae extract that can cause irritation or breakouts due to iodine content.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Porphyridium
A red microalgae often used for hydration — can cause congestion in acne-prone skin due to its rich polysaccharide content.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Porphyridium polysaccharide
Hydrating but potentially film-forming and pore-clogging depending on other ingredients.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Potassium Chloride
Can be mildly comedogenic and contribute to follicular irritation and breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Potassium Salt
Depending on the compound, may disrupt skin’s natural balance and lead to acne flare-ups.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
PPG 2 Myristyl Ether Propionate
Highly occlusive — known to trap debris in pores and aggravate acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
PPG 2 Myristyl Propionate
Can smooth skin but may cause breakouts due to high comedogenic rating.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Propanoic Acid
Occurs naturally in sweat; excessive presence or use may disrupt skin microbiome.
⚠︎ — Low Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 1 out of 5
Propylene Glycol Monostearate
Waxy emulsifier — moderately comedogenic and known to worsen acne in sensitive skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Pyrene coal tar pitch
Highly occlusive and irritating — not suitable for acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Red Algae
Rich in iodine — often leads to breakouts in acne-prone users.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Rhodophyceae extract
Yet another red algae derivative — iodine content may trigger comedones and inflammation.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Rhodophyta
The scientific name for red algae — associated with iodine-triggered acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sargassum filipendula extract
Brown algae known for high iodine content, often problematic for acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sargassum fusiforme extract
Brown algae — iodine-rich and may clog pores in sensitive individuals.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sclerocarya birrea
The botanical name for Marula — heavy oil that may be too rich for acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Sclerocarya birrea seed oil
Marula oil — emollient and rich, often clogs pores in oily or acne-prone skin types.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Sea fern
Botanical extract that may be rich in iodine or minerals — potentially pore-clogging.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Seaweed
General term for algae — usually rich in iodine, a well-known acne trigger.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sesame
Heavy oil with high comedogenic rating — commonly triggers breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sesame Oil
Heavy oil with high comedogenic rating — commonly triggers breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sesamum indicum
Sesame oil’s botanical name — pore-clogging and not ideal for acne-prone users.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Shark Liver Oil
Very emollient and rich in fatty acids — highly comedogenic.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Shark Squalene
Natural squalene from sharks (different from squalane) — oxidizes quickly and clogs pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
collapsible content
Shea Butter
Rich and nourishing but frequently clogs pores in oily/acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Sheep alcohol
Derived from lanolin — known for clogging pores and triggering breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Simmondsia chinensis seed wax
Otherwise known as Jojoba Seed Wax. Though jojoba oil is generally non-comedogenic, the wax form can be heavier and may clog pores for some individuals.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Sles
Sodium Laureth Sulfate. A harsh surfactant — can disrupt the skin barrier and lead to irritation, dryness, and rebound oiliness.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Slo
Sodium Laureth Oleate. Can be occlusive or irritating — depending on exact compound, may contribute to breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Sls
Sodium Lauryl Sulfate. Highly irritating and known to cause inflammation and barrier disruption, which can exacerbate acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Sodium Alginate
A seaweed-derived thickener — may trap oils and other pore-clogging substances on the skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Sodium Alkylethersulfate
A surfactant that can be irritating to the skin and lead to acne flare-ups.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Sodium Docusate
An emulsifier that can be mildly comedogenic, depending on concentration.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Sodium Dodecyl sulphate
Very harsh on the skin and a known acne trigger in sensitive individuals.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Sodium Laureth Sulfate
Less irritating than SLS (Sodium Lauryl Sulfate) but still known to dry out and irritate acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Sodium Lauryl Ether sulfate
Variant of SLES — can be irritating and lead to barrier disruption and acne.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Sodium Lauryl Sulfate
Highly comedogenic and irritating; disrupts skin's natural balance and worsens acne for many.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Soja
Also known as Soy. Can be hormonal for some people, especially if ingested, but topically it may also contribute to acne in sensitive skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Solulan 16
Lanolin derivative — moderately to highly comedogenic, can clog pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sorbitan Monooleate
A surfactant and emulsifier — known to be comedogenic in some formulations.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sorbitan Oleate
Can be pore-clogging depending on formulation and concentration.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Soy
Can greatly impact hormones, and soy-derived oils or extracts clog pores in topical formulations.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Soybean
Heavy oil content — may be pore-clogging for those with oily or acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Soybean Oil
Comedogenic — tends to trap dirt and oil in pores and worsen acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sphacelaria
A type of brown algae — iodine-rich and may aggravate acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Spirulina
Algae that can be beneficial internally, but topically it's often too rich and causes pore congestion.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Squalene
Highly prone to oxidation, which can trigger breakouts and clog pores. (Note: squalane, a derivative is more stable and less comedogenic, but still can cause acne is individuals with sensitive skin.)
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Starch
Can trap oils and create a paste-like film on the skin, leading to blocked pores and breakouts.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Steareth 10
A PEG compound — can disrupt the skin barrier or increase penetration of comedogenic ingredients.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Stearic Acid Tea
Can be comedogenic and irritating, particularly when combined with fatty acids and surfactants.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Stearyl Heptanoate
A fatty ester known to be highly comedogenic — often found in makeup and moisturizers.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sulfated Castor Oil
A modified version of a highly comedogenic oil — still tends to clog pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Sulfated Jojoba Oil
Less comedogenic than castor oil, but modification often makes it pore-clogging, especially combined with other ingredients.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Sulfosuccinate
A surfactant — mild on its own, but when combined with other irritants can contribute to acne indirectly.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Sulphated castor oil
Modified version of a highly comedogenic oil — still tends to clog pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Talc
Absorbent, but often traps oils, bacteria, and makeup in pores — controversial in modern skincare. We recommend avoiding this ingredient!
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Talcum
Similar to Talc, it can contribute to acne mechanica (friction-based breakouts) and clogged pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Tea stearate
Emulsifier that can be irritating or comedogenic in higher concentrations.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Tetradecanoic acid
A fatty acid — highly comedogenic and often a breakout trigger in acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Tetradecyl lactate
Ester of lactic and fatty acids — known to clog pores and worsen acne in some.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Tetradecyl myristate
Highly occlusive ester — smooths the skin but can block pores and cause breakouts.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Tetradecyl propionate
Comedogenic ester, often found in makeup and moisturizers — known to cause clogged pores.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Theobroma butter
Another name for cocoa butter — very rich and highly comedogenic.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Theobroma cocoa seed butter
Also known as Cocoa Butter. One of the most comedogenic natural ingredients — strongly pore-clogging for most acne-prone users.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Theobroma oil
Cocoa-derived oil — rich and waxy, known to block pores and worsen acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Triticum aestivum
Very high in vitamin E, but also very comedogenic — often a breakout trigger.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Triticum vulgare
Otherwise known as Wheat Germ Oil. Extremely comedogenic — notorious for clogging pores and worsening acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Turkey red oil
A form of sulfated castor oil — often pore-clogging and irritating for acne-prone skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Ulva fasciata
Another form of green algae — may be too rich for acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Ulva lactuca
Green algae that can cause congestion and breakouts in some users.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Ulva rhacodes
Similar to other algae — possible iodine content and pore-blocking properties.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Undaria Pinnatifida
Brown algae — iodine-rich and potentially acne-triggering
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Vegetable gelatin
Film-forming and can trap dirt/oil on the skin — may lead to clogged pores.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 2 out of 5
Vitellaria paradoxa
Shea Tree - The plant source of shea butter — rich oils that are highly comedogenic for many.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
collapsible content
Vulvic acid
Generally not comedogenic, but impurities often cause irritation. We recommend avoiding this ingredient.
⚠︎ — Low Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 1 out of 5
Wakame
Brown seaweed — rich in iodine, which can stimulate breakouts in acne-prone individuals.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 4 out of 5
Wheat
May be comedogenic for some, especially in extract or oil form (e.g. wheat germ), and may trigger sensitivities in acne-prone skin.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Wheat Germ Glyceride
Derived from wheat germ oil — retains many of the same pore-clogging characteristics; known to be comedogenic.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Wheat Germ Oil
One of the most comedogenic oils — rich and nourishing, but very likely to clog pores and cause breakouts on any skin type.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Wool alcohol
A lanolin derivative — highly occlusive and known for causing acne and irritation in sensitive skin.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Wool fat
Also known as Lanolin. Extremely comedogenic; traps oil and bacteria in the pores — notorious for worsening acne.
⚠︎ — High Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 5 out of 5
Xanthophyta
A yellow-green algae — less iodine than brown/red algae, but can still clog pores or irritate in some formulations.
⚠︎ — Moderate Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 3 out of 5
Xylene
A solvent — not directly comedogenic, but can disrupt the skin barrier, increasing susceptibility to breakouts and irritation.
⚠︎ — Low Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 1 out of 5
Xylitol
Usually non-comedogenic and used for hydration — generally safe for acne-prone skin unless paired with other ingredients. Due to this, we recommend staying away!
⚠︎ — Low Potential Pore Clogger
Comedogenic Score (how likely it will cause acne): 1 out of 5
Zea mays
Also known as Corn. Can be used as starch, oil, or extract. Corn oil is comedogenic, and starch can trap oils, potentially clogging pores.