Women are more likely to have adult acne than men. It's thought that many cases of adult acne are caused by the changes in hormone levels that many women.
Acne isn't just for hormonal teens: Adult acne is real. Having zits and wrinkles at the same time just can't be legal, right?.
At its root, adult acne is caused by the same things that cause teen acne: excess skin oil and bacteria. Any changes in hormones, including those brought on by.