Acne flourishes particularly in adolescence and almost no one endures their teenage years without a few lesions. In fact, medical studies show that there is an almost 100% incidence of acne and only the level of severity differs from person to person.
Sebum (oil) is a critical factor in the development of the disease of acne. Sebum production increases significantly at the onset of adolescence due to higher levels of hormones, and in particular androgens. While androgens are present in both females and males, they are primarily associated with the so-called "male" hormones. The production of sebum itself may not be as important as the fact that sebum is "fed on" by Propionibacterium acnes (P.acnes bacteria). The P.acnes bacteria then excretes certain highly inflammatory byproducts which add compound to the process problem.
Benzoyl peroxide is considered one of the most powerful antibacterial agents ever identified and is endorsed by the American Academy of Dermatology. Because of its ability to rapidly destroy P.acnes bacteria, benzoyl peroxide is an important acne therapy.