The Potent-C Power Eye Cream supplements the skin with a blend of antioxidants and THD Ascorbate. 10% THD Ascorbate is akin to a potent form of Vitamin C with up to fifty times the strength. Vitamin E supplies the skin with antioxidants and Ferulic Acid enhances the effects of both THD Ascorbate and Vitamin E. To use: Apply mornings and evenings to the eye area.