C E Ferulic"C E Ferulic is one of our unique antioxidant serums with a high concentration of vitamin C to improve skin firmness and elasticity. C E Ferulic not only provides the protective benefits of antioxidants, but also reduces the appearance of wrinkles, fine lines and slackening. This facial serum from SkinCeuticals contains 15% l ascorbic acid (pure vitamin C), 1% alpha tocopherol (pure vitamin E) and 0. 5% ferulic acid. This unique combination provides