At the heart of the GlyDerm line is glycolic acid, an alpha-hydroxy acid. Glycolic acid works by penetrating the skin to help remove and exfoliate the dry uppermost layer, leaving skin looking smoother, healthier and younger looking! The glycolic acid used in GLYDERM® products is esterified - a unique process that enables us to deliver full-potency glycolic acid without the irritation that is often associated with this natural alpha-hydroxy acid. GlyDerm offers creams, lotions and solutions available in 5%, 10% and 12% glycolic acid concentrations which work on any skin type, and are well-matched with many of the cleansers, exfoliators and moisturizers we carry. We think that once you discover GLYDERM®, it will make a world of difference to the health and beauty of your skin.