A TCA Peel, AKA a trichloroacetic acid peel improves the look of the skin impacted by aging or sun damage. TCA peels remove the top layer of the skin that is damaged. Superficial peels remove the outermost layer of the skin and are safe for all skin types. Medium peels are a bit more aggressive and treat moderate wrinkles, sun damage and skin discoloration. A deep peel penetrates the middle layers of the skin to treat deep wrinkles, shallow scars and age spots.