Obagi System Professional-C  10% Vitamin C Serum, 1-Ounce Bottle (30ml)
Obagi Professional-C Serum provides antioxidant protection with deep penetration to the dermal layer.  The 10% L-ascorbic acid helps in defending against damaging UVA and UVB rays, helps prevent premature signs of aging such as fine lines and wrinkles, and contributes to collagen synthesis.  Obagi Professional-C Serum 10% is suitable for dry, sensitive or reactive skin.