What Is Glycolic Acid?

Glycolic acid is a form of alpha-hydroxy acid (AHA) that comes from a substance referred to as sugar cane. Tartaric acid, citric acid, malic acid, and lactic acid are other types of widely-known alpha-hydroxy acids utilized in numerous skincare products. Glycolic acid works by penetrating the spaces between the cells that make up the skin, as it has the characteristic of being the smallest alpha-hydroxy acid molecule. Glycolic acid disintegrates the bonds between the skin cells that keep them together, making it an effective substance for exfoliation. Glycolic acid also enhances the ability of the skin cells to produce more collagen, the protein that gives the connective tissues and bones in the body their strength. Collagen is what gives the skin its plumpness, elasticity, and firmness. Glycolic acid is found in products designed to help with acne, scarring, hyperpigmentation, blackheads, and closing up the pores.