The main ingredient in The Nue Co.'s 'Topical - C' is L-Ascorbic Acid - aka pure Vitamin C - that doesn't activate until you dissolve it into a moisturizer, serum or water. Infused with Tapioca Starch, Oatmeal and Aloe Vera, it works to brighten skin's surface, stimulate collagen production and prevent damage from environmental stressors. You'll notice the blurring of fine lines, scarring and hyperpigmentation with repeated use.