Apply 5 to 7 drops of Obagi Professional-C Serum 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. Store at room temperature 15°-30°C (59°-86°F). Keep out of direct sunlight.
10% L Ascorbic Acid Vitamin C Serum 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 ...