Penetrates overnight to exfoliate the top layer of skin to enhance skin tone for a healthy revitalized complexion. The acid levels in the Rejuvenate Exfoliating Lotions coordinate with each of the levels of the Step-up program. They are formulated with Extract of Rosehips with Vitamin C and are completely oil free to provide maximum exfoliation. Contains 5.5% Free Acid Glycolic2 fl. oz.