This revolutionary new antioxidant combination delivers an unprecedented 8 times the skin's natural protection against photoaging - neutralizing free radicals, helping build collagen, and providing unmatched antioxidant protection. More protection means more youthful looking skin and better defense against environmental aging. Containing 15% pure L-ascorbic acid and 1% alpha tocopherol, the addition of ferulic acid doubles the already synergistic benefits of our original high-potency formula, C+E, transforming it into an unrivaled super-antioxidant combination.