1. It runs in your family.
“Oily skin is often related to genetics,” says Marisa Garshick, M.D., F.A.A.D., board-certified dermatologist at Manhattan’s Medical Dermatology & Cosmetic Surgery. “Certain people experience greater production of oil from their sebaceous glands in addition to enlarged pores.” In other words, you may not be actively doing anything to amp up your oils. They could be au naturale