A facial peel, also known as a chemical peel, is a liquid applied to your face. It sits on your skin for several minutes, working to removing the top layer. It’s called a peel because that top layer of your skin will peel off following the treatment revealing smooth clear skin while it builds collagen, reduces fine lines, boosts radiance, shrinks pore size, diminishes dark spots, and can even help with rosacea. — usually within the next few days. Chemical peels can leave you with results that persist for a month or for the rest of your life. The strength of a chemical peel is the single most important factor that affects how long its effects last. Results from a light or superficial peel typically last one to two months.