Acne is an infection of the skin, caused by changes in the sebaceous
(oil) glands due to an increase in testosterone experienced at the
on-start of puberty (by both males & females). The most common form
of acne is called acne vulgaris. Oils from the glands combine with dead
skin cells to block hair follicles. Under the blocked pore,
propionibacterium acne's bacteria can grow very quickly resulting in
pimples, pustules, redness (inflammation), blackheads, and uneven skin
texture. The psychological effect of this skin reaction is often low
self-esteem or even depression.
