The only patented serum formulation combines 10% Vitamin C with Hydroquinone.

Obagi-C Rx C-Clarifying Serum is the first and only prescription strength 4% Hydroquinone and Vitamin C Serum (10% L-Ascorbic Acid). This serum penetrates deep into the skin's dermal layers where it enhances collagen production thereby reducing the appearance of fine lines and wrinkles. Hydroquinone decreases the formation of melanin in the skin. Melanin is the pigment in the skin that gives it a brown color. Therefore, hydroquinone applied topically is used to gradually lighten areas of darkened skin such as freckles, age spots, chloasma, and melasma. This results in more radiant, luminescent skin.

Directions: Apply Obagi-C Rx C-Clarifying Serum in the morning after Obagi-C Rx C-Cleansing Gel. Squeeze dropper into palm of your hand. Apply Obagi-C Rx C-Clarifying Serum evenly to your face and massage gently into skin taking care to avoid eyes A slight tingling sensation may be felt initially as the Vitamin C is absorbed into the skin. Follow with Obagi-C Rx C-Exfoliating Day Lotion.

Ingredients: Each gram of Obagi-C Rx System C-Clarifying Serum contains Hydroquinon USP 40 mg/gm in a base of propylene glycol, propylene carbonate, L-ascorbate acid (Vitamin C), purified water and sodium lauryl sulfate

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