Acne, the most common skin disorder of the teenagers, is a malfunctioning or disorder of pilosebaceous structure, which consist of sebaceous gland (that secrete skin oil) a hair and hair follicle. You can find these structures all over the skin of the body except palms, soles and lower lip that lack this structure.

These units are more concentrated on the face, neck and chest. Sebaceous glands secret sebum (skin oil), which moisturize the skin and hair naturally while avoiding skin dryness. At the reach of adolescence these glands enlarge and produce more secretions under the influence of androgen hormone. The size of these glands restore after the age of twenty.

Role of Bacteria

Propionibacterium acnes is a bacteria used to live on the skin. It feed and reproduces on the sebum, therefore multiply quickly during puberty. People suffering from acne always have the greater number of bacteria than the people without acne. White blood cells of the body rush to kill that bacteria and release some enzyme.