The future of vitamin C. This lightweight serum is clinically proven to improve uneven skin tone & discolouration while boosting radiance and brightening dullness. The targeted formula visibly firms and improves elasticity so you get advanced results - without irritation. Targets sun damage; improves uneven tone and discolouration. Boosts radiance; visibly brightens Visibly firms & improves elasticity. Prepare to reveal your complexion's natural radiance with the powerful 25% Vitamin C + Glutathione Clinical Serum (30ml) from Paula's Choice. Formulated with 25% vitamin C (that's suspended in a highly stable oil-and-water blend), this potent potion not only helps soothe the skin, but it also brightens uneven tone and improves the look of fine lines. But that's not all; with the infusion of antioxidant-rich glutathione, this lightweight serum superstar defends your skin from environmental stressors (AKA UV and pollution), while protecting your moisture barrier. It's the perfect partner to restore your glow.