hydroquinone octisalate and zinc oxide - Generic Medications

Hydroquinone, USP 4% is 1, 4-benzenediol. The drug is freely soluble in water and in alcohol. Chemically, hydroquinone is designated as p-dihydroxybenzene; the empirical formula is C 6 H 6 O 2 ; molecular weight is 110.11 g/mol. The chemical structure is in the diagram below. Chemical Structure Each gram of Obagi Nu-Derm ® Clear contains: ACTIVE: Hydroquinone, USP 4% (40 mg/g) INACTIVES: ascorbic acid, BHT, butylparaben, cetyl alcohol, disodium EDTA, glycerin, lactic acid, methylparaben, propylparaben, saponins, sodium lauryl sulfate, sodium metabisulfite, stearyl alcohol, tocopheryl acetate, water (aqua) Each gram of Obagi Nu-Derm Blender ® contains: ACTIVE: Hydroquinone, USP 4% (40 mg/g) INACTIVES: ascorbic acid, BHT, cetyl alcohol, disodium EDTA, glycerin, lactic acid, methylparaben, phenyl trimethicone, PPG-2 myristyl ether propionate, propylparaben, saponins, sodium lauryl sulfate, sodium metabisulfite, TEA-salicylate, tocopheryl acetate, water (aqua) Each gram of Obagi Nu-Derm ® Sunfader ® contains: ACTIVES: Hydroquinone, USP 4% (40mg/g); Octinoxate, USP 7.5%; Oxybenzone, USP 5.5% INACTIVES: ascorbic acid, BHT, butylparaben, cetyl alcohol, disodium EDTA, glycerin, methylparaben, propylparaben, saponins, sodium lauryl sulfate, sodium metabisulfite, stearyl alcohol, tocopheryl acetate, water (aqua)