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.