Derived from sugar cane, glycolic acid is the smallest alpha hydroxy acid, and its fine molecules make it a beloved way to reveal fresher, smoother skin. Glycolic acid skincare appears in resurfacing cleansers, toners, pads, serums, creams, and peels that gently loosen dull surface cells for a brighter look. Introduce it gradually, pair it with daily sunscreen, and watch texture turn more even, refined, and radiant week after week.