There are many different kinds of peels and each one is performed differently. In general, chemical peels usually begin with vigorous cleansing of the skin. Very light peels (e.g. low potency glycolic acid, 10-20% TCA) only penetrate the dead skin cells that sit atop the epidermis and produce almost no injury. Sometimes, this level of peel is called “exfoliation”. Light peels (70% glycolic acid, 25-35% TCA) injure the entire epidermis and stimulate the regeneration of a new epidermis. This level of chemical peel may produce a burning sensation during the procedure. Medium depth peels involve injury to the upper level of the dermis. Injury to the dermis stimulates the formation of collagen and “plumps” up the skin. 35% TCA, in combination with another chemical such as glycolic acid, is used safely with minimal discomfort. Burning is the most common complaint during the procedure and this is usually well controlled with cool compresses, and sometimes topical anesthetic. Deep peels involve injury to the mid dermis and are usually performed using a phenol solution and anesthesia. 

Last updated on February 6, 2010 by Sarah Yousuff, MD