What is a chemical peel? A chemical peel is a cosmetic treatment that uses a chemical solution to improve the appearance and texture of your skin. When conducted by a qualified practitioner, chemical peels are safe and effective. During a chemical peel, a solution is applied to your skin. There are different types of peels, but some of the most common types use alpha hydroxy acids (AHAs) such as glycolic or lactic acid, beta hydroxy acids (BHAs) like salicylic acid, and/or tr