The main cause of teen acne is an increase in sebum production by the sebaceous glands, combined with the accumulation of dead skin cells and the proliferation of acne-causing bacteria called Propionibacterium acnes.
Teen acne, also known as adolescent acne, is a common dermatological condition characterized by the appearance of pimples, blackheads, and whiteheads on the skin of teenagers. It primarily affects individuals during puberty, typically between the ages of 12 and 18, when hormonal changes are most pronounced.