Chemical peels are acid solutions that interact with the skin to remove layers of the skin. The depth of penetration of these solutions is dependent on strength and type of acid used. The more common types of chemical peels are glycolic, lactic, salicylic, TCA and Phenol. The more superficial skin treatments are done with the alpha and beta hydroxy acids such as glycolic, lactic and salicylic. These may cause some superficial peeling but do not require a recovery time. These are used to freshen the skin and to treat complexion problems. They are collectively known as the "lunch hour peels or blue peels."
Stronger chemical peel solutions such as TCA and Phenol are used to treat uneven pigmentation and wrinkles. TCA works well for fine lines and uneven pigmentation. The recovery time for these peels is usually 5 to 7 days as there will be some swelling and noticeable peeling of the skin. You will not be able to wear make up for at least 5 days with this peel and maybe longer. The Phenol chemical peel is the most aggressive and works the best for more severe cases of wrinkling of the face. However, there are certain skin types, which would not do well with this treatment as it can cause permanent lightening of the skin.