1. Anti-cancer effect: Indigo fruit has the role of anti-virus, but also can inhibit the growth of cancer cells, so as to achieve the role of cancer prevention. 2. Liver and eyesight effects: Indigo fruit can enter the liver meridian, to promote the detoxification function of the liver cells, but also enhance the liver cell antioxidant capacity, to achieve the role of liver protection, can be used for the treatment of liver fire caused by the eye redness and swelling, eye fatigue, glaucoma, cataracts, and so on. 3. 3. Refreshing effect: blue indigo fruit has the effect of relieving fatigue, invigorate the spirit, can be used for white-collar workers who often stay up late and work overtime.