Ready. Set. GLOW. This pure, highly concentrated serum is supercharged with an innovative and uniquely stable complex of 3 forms of Vitamin C to brighten, tighten, and protect the skin. Clinically proven to increase skin brightness by 33%, firmness by 47% and elasticity by 40%. Neutralizes free radicals, and boosts collagen production for firmer, more even toned, younger looking skin.