Unique protective barrier for skin defends against environmental damage and free radicals and reinforces daily hydration. Seal skin against pollution, weather, chemicals and free radicals with antioxidant glutathione, vitamins C and E. Hydrate with sodium PCA and mucin, natural humectants that pull moisture from the air to allieviate skin dryness. Repair and strengthen skin’s collagen and elastin to see real changes in dry or aging skin.