What are hydroxy acids?
Unlike physical exfoliants that remove debris through gentle abrasion, hydroxyl acid-based exfoliants smooth the skin by dissolving the intercellular “glue” that attaches the cells to the surface. Hydroxy acids are the most common form of at-home exfoliant because they are extremely effective and, when used properly, very safe. Of course there are several different hydroxyl acids. Glycolic Acid was the first to be used in a cosmetic application, and is still widely-used despite its high incidence of skin irritation. Lactic and Salicyclic Acids, which are as effective as Glycolic Acid, are now the choice of leading skin care professionals because they deliver the same level of results with considerably less irritation. Dermalogica Gentle Cream Exfoliant and Skin Renewal Booster are two great at-home exfoliants that use this combination of Lactic and Salicyclic Acids. Hydroxy acids may be combined with enzymes derived from Papaya (Papain) and Pineapple (Bromelain) to help digest dead ski
