Acne is inflammation of the sebaceous gland unit. Sebaceous glands are found in the lower layer of the skin (dermis) and secrete sebum which lubricates and helps waterproof the skin . Sweat glands produce sweat that help regulate body temperature. Acne happens when hair follicles clog with oil (sebum), dead skin cells, and bacteria. This triggers inflammation, resulting in blackheads, whiteheads, papules, pustules, nodules, and cysts. Common areas include the face, chest, back, and even the scalp, chin, and buttocks
