Vitamin C is a vital ingredient in your skincare regime. Not only does the antioxidant-rich mineral help smooth skin texture and streamline appearance, but it can also diminish redness and help protect your complexion from long-term sun damage. For this reason, Eucerin's Hyaluron Filler Vitamin C Booster has been concocted with 10% pure vitamin C, as well as equally beneficial hyaluronic acid, for a naturally radiant finish.