Skinbetter Science’s Alto Advanced Defense and Repair Serum is a powerfully potent antioxidant serum formulated to shield the skin against the effects of internal and external free radicals. Vitamins C and E, plus 17 additional free-radical combatting ingredients combined with a new, patented antioxidant provide an optimum level of skin protection and reparative qualities.

All Skinbetter Science products are dermatologically tested, paraben-free, fragrance-free, dye-free, and cruelty-free.