Chemical peels remove damaged outer layers of skin to make skin smoother, reduce scarring and remove blemishes. Ranging from mild to strong, there are three types of chemical peels: alphahydroxy acid (AHA), trichloroacetic acid (TCA) and phenol. The strength of each peel is tailored to the patient. Peels can be combined with other procedures, such as facelifts, for additional improvement to skin. Chemical peels may be covered by insurance if they are performed for medical rather than cosmetic reasons.