Size: 1 fl.oz Obagi Professional-C Serum 20% is new formulations in Vitamin C to neutralize free radicals at all layers of the skin, before they damage skin cells and accelerate aging. 20% L-ascorbic acid is a maximum strength for all skin types except sensitive or rosacea-prone.Up to 2 times greater penetration thancompetitive C products.Obagi Professional-C Serum offers:Superior delivery system, resulting in greater penetration to all layers of the skinMaximum daily antioxidant protectionGreater stability than competitive C products and Low side effect profile

 

Directions:

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.

 

Ingredients:

Water, Ascorbic Acid, Sodium Ascorbate, Sodium Lauryl Sulfate, Fragrance, Sorbitol, Zinc Chloride, Calcium Hydroxide, Sodium Hyaluronate, Phenoxyethanol, Sodium Bisulfite.