SkinCeuticals CE Ferulic This revolutionary new antioxidant combination delivers an unprecedented 8 times the skin’s natural protection against photo aging - neutralizing free radicals, helping build collagen, and providing unmatched antioxidant protection. More protection means more youthful looking skin and better defence against environmental aging. Containing 15% pure L-ascorbic acid and 1% alpha tocopherol, the addition of ferulic acid doubles the already synergistic benefits of SkinCeuticals original high-potency formula, C+E, transforming it into an unrivalled super-antioxidant combination. Directions for use:Apply once in the morning after cleansing, apply 4-5 drops to a dry face, neck and chest. Follow with SkinCeuticals Hydrating B5 Gel and a SkinCeuticals moisturizer and sunscreen.