Help brighten skin with the Obagi-C Fx C-Clarifying Serum, a clarifying serum infused Vitamin C to help minimize he appearance of skin aging caused by photoaging. This skin-brightening serum combines Vitamin C and Arbutin to help promote rejuvenation and help even skin tone for a healthier-looking complexion. Ideal for helping to improve the appearance of fine lines, dull complexion, and wrinkles.