Vitamin C, Vitamin E, ferulic acid combination: Ferulic acid is a potent plant antioxidant. In combination with Vitamins C and E, the overall level of sun protection when layered underneath a broad spectrum sunscreen is increased.

Tetrahexydecyl ascorbate, stabilized ascorbic acid combination: THD-ascorbate is an oil-soluble C derivative that converts to ascorbic acid and penetrates to the cell. Ascorbic acid is necessary for collagen production, so combining THD-ascorbate with stabilized l-ascorbic acid increases cellular activity, thus increasing collagen output.

Co-enzyme Q (CoQ10): A powerful antioxidant that aids in skin repair and regeneration.
Astaxanthin: A very powerful antioxidant from the carotenoid family that protects against long-wave radiation damage.

This powerful, bestselling serum promotes skin health and a radiant complexion by replenishing skin with antioxidants. During the day, it delivers a sun protection boost to daily sunscreen and neutralizes free radicals. At night, the powerful combination of Vitamin C* and Tetrahexyldecyl ascorbate (a potent C-derivative) provides the nutrients your body needs to repair and rebuild collagen.

* Vitamin C as stabilized l-ascorbic acid