Obagi Professional-C Serum 15% infuses your skin with the only form of vitamin C suitable for topical application: L-ascorbic acid. The formula of this brightening serum provides effective antioxidant protection from UV damage as it and encourages the growth of collagen and elastin fibers while it brightens away hyperpigmentation. It is designed to penetrate deep into your skin as the Hyaluronic acid binds moisture. The Obagi skin care line offers some of the best brightening serums with a wide range of benefits, including rejuvenating and anti-aging actions. The Obagi system may help to increase smoothness, diminish the appearance of fine lines and wrinkles, improve elasticity, reduce pores, even skin tone, generate balance, normalize oil production, correct blemishes, reduce hyperpigmentation and age spots, increase the skin's tolerance to external elements and its ability to hold moisture through its range of many regimens that work together to achieve a targeted goal.