C-Therapy SerumThis serum is ideal for all skin types, especially sensitive, sensitized, breakout prone skin. Skin sensitized to Vitamin C find that tolerance levels improve upon gradual introduction. Next generation derivatives are stable, yet deliver Vitamin C in its active form, l ascorbic acid. The presence of l ascorbic acid allows optimal collagen production, and provides antioxidant protection and skin brightening effects. Glutathione and alpha lipoic acid