SkinBetter Science Alto Advanced Defense and Repair Serum 1.0 oz brand new Our gold-standard in internal and external antioxidant protection powered by two proprietary protectors in one clinically-proven innovation to address visual effects of aging. Environmental Protection: Proprietary complex of antioxidants that uniquely defends against a spectrum of environmental assaults. Goes beyond Vitamins C and E to include 17 additional antioxidants. Internal Protection: Proprietary, highly advanced antioxidant protection that targets internal oxidative stress and supports the skin's renewal process. Neutralizes intrinsic free radicals generated by the skin’s natural aging process. Clinically demonstrated efficacy and tolerability: Reduces UV-induced redness Improves the appearance of skin dullness, texture and tone Well tolerable for use post-procedure* * Clinically tested post non-ablative fractional laser