Derived from various plant sources, Glycolic Acid is the most active and beneficial of the alpha hydroxy acids (AHAs). AHAs gently loosen the glue-like substance that holds dead cells to the skin without taking away the skin's moisture barrier, revealing fresher, more radiant looking skin. With consistent use, AHAs work beneath the skin's surface to lighten pigmentation caused by sun damage and stimulate collagen production. By increasing collagen production, skin becomes firmer and fine lines and wrinkles less visible, resulting in a more youthful appearance.