Chemical peels are typically used to reverse signs of skin aging such as fine lines and wrinkles, and to correct minor scarring usually caused by inflammatory acne. The products used in chemical peels are extremely acidic; they work by burning the top layer of the skin, which contains dead skin cells and exposing new cells. They also promote collagen growth.

Alpha-hydroxy acid (AHA) peels, also known as glycolic peels, are relatively light peels, with a recovery time of a week at most. The treated area will swell within hours following treatment, and peel over a few days. After the skin crusts, full recovery is expected in a week.