Comedogenic Ingredient List: Which Ingredients Can Clog Pores?

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smiling woman with skincare on her cheek to represent our list of comedogenic skincare and makeup ingredients that may clog pores

Master Comedogenic Ingredient List for Acne Prone and Congestion Prone Skin

If you are prone to breakouts, blackheads or stubborn congestion, your products matter as much as your hormones and habits. Some ingredients are more likely to clog pores in certain skin types. This is why comedogenicity ratings exist: they give a general idea of how likely an ingredient is to contribute to clogged pores.

The key word is general. Comedogenic ratings are a guide, not a diagnosis. Real skin is more complicated than a single number.

What Does “Comedogenic” Actually Mean

A comedone is a clogged pore. It can be open at the surface, which shows as a blackhead, or closed at the surface, which looks like a small white bump under the skin.

An ingredient is called comedogenic if it has a higher likelihood of contributing to these clogged pores in test settings. Most ratings come from older studies that used ingredients at high percentages. In real products, ingredients are used in blends, at much lower levels and in different textures.

This list is a tool, not a verdict. We use it together with your skin history, your routine and how your skin behaves over time. Reach out to me for a Virtual Acne Skin Consult to get a personalized acne treatment plan based on my 20+ years of experience as an esthetician!

How To Use This Comedogenic Ingredient List

Use this list to spot patterns. It is not about fear. It is about being informed and strategic.

  • Look for repeat offenders. If you see the same ingredient in several products that seem to trigger bumps or breakouts, it is worth flagging.
  • Consider the product type. A richer ingredient in a heavy night cream is more likely to be a problem than a tiny amount in a light serum or a rinse off cleanser.
  • Look at position on the label. Ingredients near the top of the list are present at higher levels. Near the bottom, usually lower levels.
  • Remember that irritation and allergy are different from clogging. Redness or burning is irritation or sensitivity. Tiny closed bumps and stubborn congestion are more about pore clogging.
  • Your skin is the final decision maker. If a product looks “perfect” on paper but your skin hates it, we trust your skin.

Master Comedogenic Ingredient List (Higher Risk 3–5)

These ingredients are considered comedogenic, meaning they can clog pores and lead to breakouts—especially in acne-prone skin.

Ingredient (INCI / Common Name)Also Known As / NotesTypical FunctionApprox. Comedogenic Rating
Acetylated LanolinLanolin derivativeEmollient4–5 (high)
Acetylated Lanolin AlcoholLanolin based alcoholEmollient5 (high)
Algae ExtractVarious algae or seaweed extractsThickener, humectant4–5 (high)
Cocoa ButterTheobroma Cacao Seed ButterOcclusive emollient4 (high)
Coconut OilCocos Nucifera OilEmollient, occlusive4 (high)
Coconut ButterHydrogenated Coconut OilEmollient4 (high)
Cottonseed OilGossypium Herbaceum Seed OilEmollient3–4 (high)
Decyl OleateDecyl OleateEmollient ester3 (high)
Ethylhexyl PalmitateOctyl PalmitateEmollient ester4 (high)
Glyceryl 3 DiisostearateGlyceryl DiisostearateEmollient4 (high)
Hydrogenated Vegetable OilHydrogenated plant oilsOcclusive emollient3–4 (high)
Isocetyl AlcoholHexadecanol derivativesFatty alcohol emollient4 (high)
Isocetyl StearateIsocetyl StearateEmollient ester5 (high)
Isopropyl IsostearateIsopropyl IsostearateEmollient ester5 (high)
Isopropyl LinoleateIsopropyl LinoleateEmollient ester3 (high)
Isopropyl MyristateIsopropyl MyristateSlip agent, emollient5 (high)
Isopropyl PalmitateIsopropyl PalmitateEmollient ester4 (high)
Isopropyl OleateIsopropyl OleateEmollient ester4 (high)
Isostearyl IsostearateIsostearyl IsostearateEmollient ester5 (high)
Isostearyl NeopentanoateIsostearyl NeopentanoateEmollient ester3 (high)
Isostearyl PalmitateIsostearyl PalmitateEmollient ester4 (high)
Laureth-4Laureth-4Surfactant or emulsifier5 (high)
Lauric AcidLauric AcidFatty acid4 (high)
Linseed OilFlaxseed OilEmollient4 (high)
Mink OilMink OilEmollient3–5 (high)
Myristic AcidMyristic AcidFatty acid3 (high)
Myristyl LactateMyristyl LactateEmollient ester4 (high)
Myristyl MyristateMyristyl MyristateEmollient ester5 (high)
Myristyl PropionateMyristyl PropionateEmollient ester3 (high)
Octyl PalmitateOctyl PalmitateEmollient ester4 (high)
Octyl StearateOctyl StearateEmollient ester3 (high)
Oleth-3Oleth-3Surfactant or emulsifier5 (high)
Oleyl AlcoholOleyl AlcoholFatty alcohol4 (high)
Oleyl OleateOleyl OleateEmollient ester4 (high)
PEG-16 LanolinPEG-16 LanolinLanolin based emollient4 (high)
PPG-2 Myristyl PropionatePPG-2 Myristyl PropionateEmollient ester3 (high)
Propylene Glycol Dicaprylate/DicaprateVarious PG estersEmollient ester3 (high)
Sodium Lauryl SulfateSLS; more irritant than comedogenicAnionic surfactant3 (high / irritant)
Wheat Germ OilTriticum Vulgare Germ OilEmollient5 (high)
LanolinLanolinEmollient, occlusive3–4 (high)
Lanolin OilLanolin OilEmollient3–4 (high)
Algin / Alginic AcidSeaweed derivedThickener3–4 (high)
CarrageenanChondrus Crispus ExtractThickener3 (high)
Certain D&C Red PigmentsD&C Red 17, 19, 21, 27, 30, 36Colorants in makeup3–5 (high)

Moderate Risk Ingredients (2–3)

These ingredients are not an automatic problem. They sit in a more “depends on the formula and your skin” zone. For some clients, they are perfectly fine. For more acne prone or very clog prone skin, we watch them more closely, especially in rich leave on products.

IngredientAlso Known As / NotesTypical FunctionApprox. Comedogenic Rating
Almond OilPrunus Amygdalus Dulcis OilEmollient2 (moderate)
Avocado OilPersea Gratissima OilEmollient2 (moderate)
BeeswaxCera AlbaThickener, occlusive2 (moderate)
Cetearyl AlcoholCetearyl AlcoholFatty alcohol emollient2 (moderate)
Cetyl AcetateCetyl AcetateEmollient ester2 (moderate)
Cetyl AlcoholCetyl AlcoholFatty alcohol emollient2 (moderate)
Glyceryl StearateGlyceryl StearateEmulsifier, emollient2 (moderate)
Glyceryl Stearate SEGlyceryl Stearate SEEmulsifier, emollient2–3 (moderate)
Laureth-7Laureth-7Surfactant or emulsifier3 (moderate)
Olive OilOlea Europaea Fruit OilEmollient2 (moderate)
Peanut OilArachis Hypogaea OilEmollient2 (moderate)
Sesame OilSesamum Indicum Seed OilEmollient2–3 (moderate)
Soya (Soybean) OilGlycine Soja OilEmollient2–3 (moderate)
Stearic AcidStearic AcidFatty acid2 (moderate)
TocopherolVitamin EAntioxidant2 (moderate)
Tocopheryl AcetateVitamin E AcetateAntioxidant2–3 (moderate)

A Reality Check About Comedogenic Ratings

A few important points so this stays grounded and not fear based:

  • Many classic comedogenicity tests were done on animal ears or on human backs. Your face is different.
  • Concentration matters. An ingredient at 0.5 percent behaves differently than at 50 percent.
  • Texture and formula style matter. Light gels or emulsions often behave better than very heavy balms.
  • Your whole routine matters. If every step is rich and occlusive, your risk is higher than if only one product is richer.

This is why I always pair ingredient education with a virtual skin consultation. We look at your skin, your lifestyle and your products together. Clients in the Los Gatos local area can also do a consult in person, if preferred! Please contact me to set up your virtual or in-person appointment.

When To Book a Skin Maven Consult

If you feel like you have “tried everything” and still see congestion, tiny bumps or breakouts along the jaw, hairline or cheeks, it is time for guided support. As an esthetician with 20+ years of experience in acne skincare and treatments, I’m here to help!

During a consultation we can:

  • Review your current skincare, makeup and even hair products
  • Identify likely culprits in your routine
  • Build a realistic plan that respects your budget and your lifestyle
  • Support healthier, calmer and more predictable skin over time

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