One could logically think that all the ingredients that should particularly be avoided by people with oily skins (occlusive, comedogenic, too irritant or drying, and likely to cause ‘rebound effects’…) are excluded from the composition of cosmetics specifically formulated for them. Unfortunately, it is not always the case. And checking the list of ingredients helps make a better choice. Here is a short list of the actives to be avoided by people with oily skins.