Acne is a skin condition caused by clogged hair follicles and dead skin cells, resulting in pimples, blackheads and whiteheads. It is most common in teenagers due to increased hormone production during puberty. Acne severity ranges from mild to moderate to severe, depending on the number and type of breakouts. Effective treatment options exist to reduce inflammation and prevent scarring, with the goal of treatment being to start as early as possible.