In the proper form and potency, vitamin C attacks free oxygen radicals. In addition to its function as a powerful antioxidant, vitamin C also encourages the production of collagen and elastin. Used daily, Cffectives vitamin C products can help restore the luster and youthfulness that time has taken away. Cffectives contains L-ascorbic acid, the most potent form of vitamin C available, and the only form of vitamin C the body uses to combat oxy-radicals.