Monobenzone is a local decolorizing agent, which is used to treat hyperpigmentation, such as various pigmentation spots, Amyloid plaques, Melanoma, etc., with obvious effect. It can decompose the melanin in the skin, prevent the formation of melanin in the skin, and restore the healthy color of the skin without damaging the Chromatophore. It is very mild toxic and is usually made into ointment or liniment.