Glycolic acid is an alpha hydroxy acid (AHA), a type of chemical exfoliant that dissolves the bonds that hold dead skin cells together. There are a number of studies supporting glycolic acid’s capabilities in exfoliating and improving signs of aging such as uneven skin tone, sun damage, rough skin and fine lines, as well as effectively increasing the skin's hydration and texture. Recent studies have shown glycolic acid also has the potential to protect from UV damage, but more evidence is needed. Glycolic acid is naturally occurring but is most effective in skincare when lab-produced.
