THINK C 15% 30ML + ACTIVATOR 30ML FACE CREAMTHINK C 15% 30ML + ACTIVATOR 30ML FACE CREAM A vitamin C serum using 3 breakthrough waterless formula to delivers a natural source of highly stable vitamin C to your skin. With regular use of Think C 15% Serum and Activator, you will see a reduction in fine lines and skin that is firmer, smoother and noticeably healthier. Think C 15% works by stimulating cell renewal and helping the skin to increase the production of collagen and elastin. The vitamin