Phloretin CF® represents a new class of topical Vitamin C based formulations. After five years of extensive research, SkinCeuticals developed this patent-pending innovative technology combining the newly-discovered, broad-range power of Phloretin with vitamin C and ferulic acid in a single formulation. Phloretin CF® is formulated with an optimum acid combination of 2% Phloretin, 10% vitamin C, and 0.5% ferulic acid. Phloretin CF®, a broad spectrum product, helps to reinforce the skin’s natural protection against free radicals. In addition, it helps to correct the appearance of visible signs of existing damage by encouraging surface cell turnover. The result — a strengthened support structure on the inside and a more youthful, firm, radiant looking appearance on the outside.