ABOUT ACNE
Acne is a chronic condition caused when hair follicles become plugged with dead skin cells and oil (secreted from an attached sebaceous gland.) Although acne most commonly appears in puberty, it can be experienced in adults, as well. Acne typically appears on the face, chest, back, and shoulders, the areas with the largest number of oil glands. Acne can take several forms.
Noninflammatory lesions:
Comedones (whiteheads and blackheads) form when hair follicles become clogged and blocked by oil secretions and dead skin cells.