Obagi Professional-C® Serum 20% (Vitamin C)

Professional-C Serum 20% is our highest concentrated serum, packed with antioxidants to help minimize the appearance of fine lines and wrinkles while leaving skin feeling silky soft. This high-performance serum is formulated with 20% L-ascorbic acid (Vitamin C) and is best suited for normal to oily skin. Obagi's Professional-C Serums, provide L-Ascorbic Acid, the most bioavailable form of Vitamin C for optimal skin absorption and results. L-Ascorbic Acid is effective in reducing the appearance of fine lines, wrinkles, and photoaging of the skin. Professional-C Serum 20% provides 5X better absorption levels over another leading competitor. Consumers prefer Obagi Professional-C Serum 20% nearly 2 to 1 over another leading competitor.