Vitamin C Optimal Age Repair Serum (10%) with Superox-C from Kakadu Plum- world’s richest source of vitamin C. It’s a powerful antioxidant that stimulates collagen production and helps to reduce the signs of aging. It repairs the damage done by free radicals and the sun. Superox-C delivers Vitamin C deep into the skin’s cells instantly without losing its potency. Reduces redness, uneven skin tone, fine lines and wrinkles