Vitamin C is a powerful antioxidant that improves skin tone and reduces the appearance of aging signs. Because of the lack of water, this water-free, silicone-free formula contains 23 percent pure L-Ascorbic Acid, which remains completely stable. The system is bolstered by the addition of dehydrated spheres of Hyaluronic Acid to provide visible surface smoothing in addition to the benefits of Vitamin C. This treatment is best applied at night.