Obagi Professional-C Serum 20%

A 20% vitamin C serumVitamin C has been proven to be one of the most effective antioxidants, and Obagi Professional-C 20% Serum contains the highest concentration you can get. In addition to protection from the free radical damage that causes premature aging, this serum also support a more collagen rich appearance, in turn reducing the appearance of fine lines and wrinkles. Use on its own or as part of the Obagi Nu-Derm Anti-Aging System.HOW TO USEOnce or twice a day after cleansing, apply a sufficient amount of Obagi Professional-C 20% Serum to the face, neck and chest using fingertips. Apply before any makeup, sunscreen or night cream. A slight tingling sensation may occur.INGREDIENTSPropylene Glycol, Water, L-Ascorbic Acid, Alcohol, Ascorbyl Glucoside, Ethoxydiglycol, Phenoxyethanol, Sorbitol, Sodium Hyaluronate, Zinc Chloride, Calcium Hydroxide, Fragrance.