Propylene Glycol, Water, L-Ascorbic Acid, Alcohol, Ascorbyl Glucoside, Ethoxydiglycol, Phenoxyethanol, Sorbitol, Sodium Hyaluronate, Zinc Chloride, Calcium Hydroxide, Fragrance.
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 an makeup application. A slight tingling may occur in some people, which diminishes with continued use. Precautions: Topical solution- for external use only. Avoid direct with mucous membranes. Store in dark, cool place. Keep cap on tightly when not in use.