Acne is the most common skin problem that affects young people. It's most common in teenagers, but it's getting more common in adults.

• Most people get some acne. About 8 in 10 teenagers have spots at some point.^[12]

• In one study, about half the teenagers aged 14 to 16 had acne.^[13]

• About 3 in 10 teenagers have acne that's bad enough to need treatment.^[14]

• More people over 25 have acne now than in the past.^[15] We don't know why.

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