SkinCeuticas C E Ferulic High Potency Triple Antioxidant Treatment with 15% L- Ascorbic Acid 1% Alpha Tocopherol 0.5% Ferulic Acid New and Sealed Description A high potency triple antioxidant facial serum. Formulated with Vitamins C & E for antioxidant properties. Blended with Ferulic Acid to maximize its antioxidant effectiveness. Optimizes skin protection from environmental damage. Prevents the appearance of premature aging signs