Salicylic acid, which is drying, works best on oily skin. It is the most commonly used beta hydroxyy acid (BHA) for peels. Salicylic acid dissolves oil buildup in pores and is less irritating than AHAs. These peels rapidly exfoliate the skin, allowing dead skin cells to shed more effectively. By keeping dead skin cells and oil from clogging pores, pimples are drastically reduced. BHAs come from wintergreen and birch bark and can help to remove acne scars. Learn more about chemical peels here: https://masterpieceskinrestoration.com/blog/chemical-peels/