What is Glycolic Acid? It is an alpha-hydroxy acid (AHA) derived from sugar can.  If you have concerns about Fine Lines, Sun Damage, Blackheads, Clogged Pores, Age Spots,  Hyperpigmentation, Uneven Skin Tone, it is a type of chemical exfoliant that dissolves the bonds between dead skin cells, allowing them to be easily wiped away to reveal smoother, younger, healthier looking skin. You can use it on your face, your arms, your neck with results that include Smoothness, Radiance, Clearer Skin, Tightness, Lifted appearance, Balanced Tone, Softness, Firmer Skin. .