Read here for details on Glycolic acid👇🏽 ✨beginners and sensitive skin go for low concentration First and foremost, glycolic acid is an exfoliant. It helps shed dead skin cells and reveal the newer, brighter layers underneath by acting on the stratum corneum (the outermost layer of skin). The major advantage of glycolic acid is that it does more than treat breakouts. The ingredient can also tackle hyperpigmentation, dullness, and signs of skin aging, such as lines and wrinkles, without breakin