KEY INGREDIENTS
Hydroquinone 4%
Strong inhibitor of melanin production that has long been established as the most effective ingredient for reducing and potentially eliminating melasma
L-Ascorbic Acid
Known as the purest form of Vitamin C, L-ascorbic acid helps neutralize free radicals, minimize the look of fine lines and wrinkles, and brighten skin tone
ALL INGREDIENTS
Each gram of Obagi-C Rx C-Clarifying Serum Normal to Oily contains the following ingredients
Active ingredient: Hydroquinone USP, 4% (40 mg/g)
Inactive ingredients: Water (aqua), propylene glycol, alcohol denat., dipropylene glycol, ascorbic acid, propylene carbonate, sodium lauryl sulfate, fragrance