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Myth: Acne Is Caused By Dirt

Fact: Acne is a complex skin condition that has nothing to do with dirt -- bacteria is the culprit. A type of bacteria called Propionibacteria acnes (P. acnes) gets into the pores, causing inflammation that results in pimples. Blackheads are caused by a buildup of sebum -- your skin's natural oil -- in your pores.

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