化斑口服液是由赤芍、白芍、珍珠母、夏枯草等多味中药组成 ,具有滋补肝肾、理气、化瘀等功能 ,临床用于黄褐斑、雀斑、色素沉着等有较好的疗效。原生产工艺采用水煎醇沉法 ,需耗用大量酒精 ,成本较高 ,现改用壳聚糖作澄清剂代替醇沉法工艺 [1] ,取得了较好的澄清效果 ,为考察 The oral liquid is composed of many traditional Chinese medicines such as red peony root, white peony root, mother of pearl, and Prunella vulgaris. It has nourishing liver, kidney, qi, and phlegm. It is clinically used for chloasma, freckles, pigmentation, etc. Efficacy. The original production process adopts water decoction and alcohol precipitation method, which consumes a lot of alcohol and has a high cost. Now it uses chitosan as a fining agent instead of the alcohol-sinking process [1] , and has achieved a better clarification effect.