The tendency of topical substances to increase the buildup of dead cells within
follicles, causing the development of comedones, which can lead to acne eruptions.
Open Comedones Blackheads. Being exposed to the air causes oxidation, which
is what makes them black (not dirt).
Closed Comedones Whiteheads.
It can take months for comedones to occur through product exposure.
The ingredients most likely to cause comedones are emollients, which have large molecules that sit on the surface of the skin, helping to trap moisture and lubricate the skin.
There are many types of emollients including oils, waxes, fatty acids, and more.Here is a list of common comedogenic ingredients:
Notes: Fractionated Coconut Oil is not your grocery store coconut oil, and is non-comedogenic.
Just because an ingredient may be considered comedogenic, doesn’t mean it will give you acne. It depends largely on the concentration of that ingredient present in the product, along with your skin’s natural susceptibility to clogged pores and breakouts.
Area of application is also a factor. Most people won’t break out on their legs, lips, and eyelids so non-comedogenic ingredients may not be as important here.