Chemical peels can reduce or improve fine lines and wrinkles, acne, scars, uneven skin coloring, and other skin imperfections. Different chemicals determine the depth of your peel and the type of skin condition treated. A chemical peel is a procedure in which a chemical solution is applied to the skin to remove the top layers. 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 desired results.