By Comedogenic refers to the likelihood of clogging pores and causing acne by blocking them.
On the other hand, the term non-comedogenic is used for ingredients that are not likely to clog pores, but stating this with absolute certainty isn’t entirely accurate. This is because comedogenicity tests use human back skin, and an ingredient that is non-comedogenic on the back might still be comedogenic on the face.
Additionally, every skin type and its reactions are different, so an ingredient that works well for one person’s face might trigger acne in another.
Studies have shown that substances like petrolatum and mineral oil, contrary to common belief, are not in the comedogenic category.
Recommendation for acne-prone oily skin:
While there’s no guarantee, it’s advisable to prefer non-comedogenic and oil-free products. Before use, it’s recommended to conduct a patch test on a small area of the cheek.