AHA stands for Alpha Hydroxy Acid. This is the collective term for a range of water-soluble acids, including Glycolic Acid, Lactic Acid, Mandelic Acid and Citric Acid. AHAs are chemical exfoliants that remove the build-up of dead skin, by breaking the bonds that hold dull, dead cells together. They are water-soluble, so work only on the skin’s surface, to leave your complexion soft and smooth. In addition to exfoliating, AHAs can also stimulate collagen production, diminish the appearance of fine lines and wrinkles, and improve the skin’s ability to retain moisture.
