Multiple award-winning antioxidant product Provides unprecedented anti-aging benefits Suitable for normal to dry skin  PREVENT SkinCeuticals C E Ferulic Serum This revolutionary antioxidant combination delivers an unprecedented 8 times the skin's natural protection against photoaging - neutralising 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.- Sunscreens only block 45-55% of free radicals, leaving skin vulnerable to environmental damage - C E Ferulic provides 8x photoprotection and unprecedented anti-aging benefits- C E Ferulic reduces sunburn cells up to 96% in UV irradiated skin- C E Ferulic prevents thymi