A chemical peel is a technique used to improve and smooth the texture of the skin. Facial skin is mostly treated, and Scarring can be improved. Chemical peels are intended to remove the outermost layers of the skin. The skin that grows back is smoother. With a light or medium peel, you may need to undergo the procedure more than once to get the results. Chemical peels are used to treat wrinkles, discolored skin, and scars usually on the face.