Obagi Nu-Derm® Professional-C Serum 10% 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.
Directions: Apply 5 to 7 drops to the face, neck and chest using fingertips. Apply to cleansed skin in the morning before sunscreen and makeup application. A slight tingling may occur in some people, which diminishes with continued use.