β-Arbutin, molecular formula C₁₂H₁₆O₇, molecular weight 272.25, since it was first derived from the leaves of the arbutin plant, so it has been named arbutin, it can be antibacterial, antitussive, diuretic, by accelerating the decomposition and excretion of melanin, arbutin can reduce deposition of skin pigment, removal of freckles and achieve the wonderful effect of whitening. In the field of daily chemicals, it is mainly used for the preparation of advanced whitening cosmetics, and has no toxic and side effects.