An AHA peel is the gentlest of the three types of chemical peels. It contains glycolic, lactic and fruit acids that smooth and brighten skin, and is used to treat fine wrinkles, dryness, uneven pigmentation and acne. An AHA peel is typically applied once a week, or may be mixed in a milder concentration with a cream or cleanser to be used daily. Treatment takes less than 10 minutes.