* Hydroquinone is a skin bleaching agent.
Hydroquinone is a skin-bleaching agent used to lighten areas of darkened skin such as freckles, melasma, age spots, and acne scars. Hydroquinone decreases the formation of melanin in the skin (Melanin is the pigment in skin that gives it a brown color). In most cases, lightening of skin should be seen after 4 weeks of treatment. Sometimes it may take longer to see any change but if no bleaching effect is seen after 3 months of treatment, you should stop using hydroquinone.
Hydroquinone is an over-the-counter drug that may be used in concentrations of up to 2%. Most prescription-strength hydroquinone formulations contain 3