“Comedogenic” gets thrown around a lot, and most of it traces back to 1970s rabbit-ear tests on pure ingredients at far higher concentrations than any real product uses — not a guarantee any specific person will break out. Treat this as a watch-list for acne-prone skin, not a banned-ingredients list: plenty of people use several of these daily with no issue, and a full formula behaves differently from one ingredient in isolation. With that caveat, these ten come up often enough in acne-prone routines that they are worth knowing on sight.
The ten ingredients
- Coconut oil (INCI: Cocos Nucifera Oil) — one of the oils most often linked to clogged pores on the face. It is very moisturising, which is exactly why it is popular in body and hair products, where pore-clogging on the face is not the concern.
- Cocoa butter (Theobroma Cacao Seed Butter) — rich and good for very dry skin, but a common one to flag in rich body butters and lip products used near the face.
- Isopropyl myristate — used across skincare and makeup because it makes formulas spread smoothly and feel light, which is also why it shows up in products nobody would guess are a problem.
- Isopropyl palmitate — the same role as isopropyl myristate, in a lot of the same product types: silky, fast-absorbing, and a frequent flag in acne-prone routines.
- Myristyl myristate — a waxy texture-improver, less common than the two above but the same family of concern.
- Ethylhexyl palmitate (also listed as octyl palmitate) — another silky emollient ester; worth checking for on sunscreens and primers specifically, where it is common.
- Olive oil (Olea Europaea Fruit Oil) — high in oleic acid, which research suggests is more likely than other plant oils to disrupt the skin barrier and worsen breakouts for some people.
- Wheat germ oil (Triticum Vulgare Germ Oil) — rich in vitamin E, and rich enough in texture to be a common pore-clogging flag in facial oils.
- Lanolin — excellent for very dry or compromised skin, but heavy enough to clog pores for some, and a known contact allergen for a smaller group entirely separate from the comedogenic question.
- Squalene (not squalane) — the skin's own oil form, before it is hydrogenated into the far more stable, lighter squalane that most serums actually use. Squalene oxidises faster and is the one more often linked to congestion.
Squalene and squalane are not the same ingredient. The extra ‘e’ is the one worth watching; squalane (with an ‘a’) is the stabilised, lightweight version used in most modern serums and is not on this list.
Why a list like this can only tell you so much
Comedogenicity ratings come almost entirely from tests on rabbit ears, done decades ago, on single ingredients at concentrations far higher than a finished product would ever use. They were never validated against human facial skin, and a full formula — with its mix of other ingredients, its total percentage of the oil in question, and your own skin's particular tendencies — behaves differently from an ingredient tested alone. None of that makes the pattern useless; it is why dermatologists still reference it. It just means the honest use of a list like this is as a starting point to test carefully, not a verdict to panic over.
Position on the ingredient list matters too. An ingredient near the end of a long list is present in a small amount; the same ingredient second or third on a short list is a much bigger share of the formula.
What tends to work better for acne-prone skin
None of this means acne-prone skin should avoid oils and rich textures altogether — it means picking ones with a better track record. Squalane, jojoba oil and grapeseed oil are the three most commonly recommended lighter alternatives: squalane and jojoba are structurally close to skin's own sebum, and grapeseed is high in linoleic acid, the fatty acid acne-prone skin tends to be short on (oleic-acid-heavy oils like olive oil skew the other way).
- Squalane — stable, lightweight, close to skin's own oils.
- Jojoba oil (Simmondsia Chinensis Seed Oil) — technically a liquid wax, very close in structure to sebum.
- Grapeseed oil (Vitis Vinifera Seed Oil) — higher in linoleic acid, the fatty acid most often low in oily and acne-prone skin.
- Niacinamide and dimethicone — not oils, but both have a strong track record of not clogging pores while still improving texture and barrier comfort.
Check what is actually in your own routine
A general list like this one can only cover the ingredients that come up often. The faster way to check a specific product is to paste its full ingredient list into a checker and see exactly which of its ingredients are flagged, in the order they actually appear on your label — not just the ones that happen to be famous enough to make a top-ten post.
Frequently asked questions
Are comedogenic ratings scientifically reliable?
Only loosely. Most comedogenic ratings trace back to 1970s rabbit-ear tests on single ingredients at high concentrations, never validated on human facial skin. They are a useful starting pattern, not a guarantee that a rated ingredient will clog your pores — or that an unrated one won't.
What is the difference between squalene and squalane?
Squalene is the oil form naturally found in skin and in some plant and animal sources; it oxidises quickly and is more often linked to congestion. Squalane is the hydrogenated, stabilised version used in most modern skincare — lightweight, shelf-stable, and not considered comedogenic.
Is coconut oil bad for all skin types?
No. It is very moisturising and works well for dry skin on the body and in hair. The concern is specifically about using it on acne-prone facial skin, where its particular fatty acid profile is one of the more consistently reported triggers for clogged pores.
What should acne-prone skin use instead of comedogenic oils?
Lighter, more stable options such as squalane, jojoba oil and grapeseed oil, plus non-oil ingredients like niacinamide, generally have a better track record for acne-prone and oily skin.
How do I know if a product I already own contains these ingredients?
Check the full ingredient list against the ones on this page, or paste the whole list into a free ingredient checker to see every ingredient explained, including comedogenic and other flags, in the order they appear on the label.