Glycolic acid belongs to the group commonly referred to as fruit or alpha hydroxy acids. It is derived from sugar cane, so it is considered a natural product. In skin care products it works as a hydrating and exfoliating agent because of its high acidity and easy solubility; it helps to gently slough, or exfoliate, the dead cell layer which manifests fine lines and uneven skin tone. Glycolic acid penetrates well because of its small molecular size, and when the dead skin cells are removed, newer, fresher, skin is revealed. The result is a much-smoother skin surface and a more youthful appearance.