Developed with dermatologists, this unique formula - with 3 essential ceramides & 10% pure vitamin C - visibly brightens while helping to restore the protective skin barrier. CeraVe Skin Renewing Vitamin C Face Serum has a potent antioxidant L-Ascorbic acid (the purest form of vitamin C)that helps to even skin tone and continuously brighten while helping to defend against free radicals, providing antioxidant benefits. This face serum has a gentle, lightweight formula helps restore the protective skin barrier and improve skin hydration, leaving skin soft, radiant, and healthy-looking. Skin appears visibly brighter and even toned with improved texture.