PREVAGE Anti-aging Daily Serum provides significant benefits to protect and correct the look of skin, helping shield skin from environmental assaults, intercept future aging signs and dramatically improve the look of sun damaged skin.Our #1 Solution to the #1 Cause of Signs of Aging PREVAGE Anti-Aging Daily Serum protects and corrects the look of skin, helping shield it from environmental assaults and intercepting future aging signs to dramatically improve the look of sun-damaged skin.Fortified with Idebenone the most powerful antioxidant available today.1Idebenone has been tested under the rigorous EPF Environmental Protection Factor protocol. EPF assesses how much protection you get against environmental aggressors such a stress, pollution, and smoke- all of which accelerate the signs of aging. When tested, Idebenone scores an EPF rating of 95 out of 100. In fact, testing has shown that Idebenone outperforms the leading antioxidants alpha lipoic acid, kinetin, vitamin C, vitamin E, and coenzyme Q10 in preventing oxidative stress.