Black and red goji berries soaked together can be used to nourish the liver and kidneys, benefit the essence and brighten the eyes (tonifying the essence and promoting the recovery of vision). It can relieve symptoms such as deficiency, soreness of waist and knees, dizziness and tinnitus. 1. Nourishing the liver and kidney: black wolfberry belongs to food, red wolfberry belongs to medicine and food medicine, its taste is sweet and flat, the two together can nourish the liver and kidney. For the liver and kidney yin deficiency caused by lumbar and knee soreness (waist and knee soreness and weakness feeling), dizziness, spermatorrhea and so on have a certain effect. 2. Benefiting the essence and brightening the eyes: red wolfberries have a good effect on brightening the eyes, which can alleviate the blurred vision caused by the deficiency of liver and blood, and the deficiency of kidney and yin. Although black and red wolfberry infusion has the above effects, but the effective dose of infusion is limited, it is difficult to achieve the above effects. It is recommended to do so under the guidance of a doctor.