17.5% L-Ascorbic Acid is the active agent in this advanced level of Cellex-Cs Skin Firming Cream. This hydrating emollient cream will help keep your skin looking smooth and youthful. Only for use by those already using Cellex-C Skin Firming Cream Plain/Plus, High Potency Serum or the Advanced-C Serum. Helps improve fine wrinkles, early signs of sagging skin, age spots and wrinkles