Dr. Wu's Intensive Renewal Serum contains 6% mandelic acid, which effectively helps diminish the appearance of fine lines and wrinkles, as well as stimulate skin cells to improve texture and clarity. The non-comedogenic and alcohol-free formula also includes other ingredients such as sodium hyaluronate, Oat B-Glucan and centella asiatica extracts, which are easily absorbed by skin to hasten the renewal process. Use the dropper to apply a small amount to face and neck after cleansing for two to three times a week . Avoid the eye and lip areas.