Use of daucosterol in preparing medicine for treating pigmented dermatosis

The invention provides use of daucosterol in preparing a medicine for treating pigmented dermatosis. The medicine for treating pigmented dermatosis is a medicine for inhibiting tyrosinase activity. The pigmented dermatosis is chloasma, freckles, cafe-au-lait spots, post-inflammatory pigmentation and the like. Tests prove that the daucosterol has effects of inhibiting melanogenesis and whitening skin. 本发明提供了西托糖苷在制备治疗色素增加性皮肤病药物中的应用，所述色素增加性皮肤病药物为通过抑制酪氨酸酶活性的药物。所述皮肤病为治疗黄褐斑、雀斑、咖啡斑、炎症后色素沉着等色素增加性皮肤病。试验证明：西托糖苷具有抑制黑素生成及美白作用。