Ingredient library

Yes - coconut oil is highly comedogenic. It scores 4-5 out of 5 on published comedogenic scales (the Fulton assay rated coconut butter 4, practitioner lists rate unrefined oil 5) and is one of the most common pore-clogging ingredients found in moisturizers, cleansers and hair care.

Yes - isopropyl myristate is one of the most comedogenic ingredients in cosmetics, rated 5/5. It is a synthetic ester used to make products feel lighter and spread better, and it is a well-documented breakout trigger.

Mildly - cetyl alcohol rates 2/5, a low-to-moderate risk. Despite the name it is not the drying 'alcohol' in toners; it is a waxy fatty alcohol that thickens and stabilizes creams, and it is well tolerated by most skin, including many acne-prone people.

Rarely - pure lanolin rates only 1-2/5 on published scales, much lower than its rich, greasy feel suggests. The catch: some lanolin derivatives rate up to 5/5, so the family matters more than the word 'lanolin'.

No - squalane is about as close to non-comedogenic as an oil gets, rated 1/5 on published scales. It is one of the safest moisturizing oils for acne-prone skin and a common replacement for coconut oil and other heavy plant oils.