A toning lotion to balance pH of skin Fosters dissolving of other Obagi-C Rx System products Formulated with hydroquinone to minimize presence of hyperpigmentation & age spots Contains L-ascorbic acid (Vitamin C), a topical antioxidant Helps accelerate collagen synthesis & shield skin by reducing future skin cell damage Unveils a revitalized, healthy & evenly-toned complexion Perfect for normal to oily skin