Lycium barbarum has the effect of nourishing the liver and kidneys, benefiting the essence and brightening the eyes (tonifying the essence and promoting the recovery of vision). It is clinically used to treat liver and kidney yin deficiency (deficiency of yin fluid in the liver and kidneys) syndrome. Lycium barbarum is a medicinal and food ingredient. It is sweet in taste and flat in nature, and belongs to the liver and kidney meridians. It has the effect of nourishing the liver and kidney, benefiting the essence and brightening the eyes. Clinically used for the treatment of lumbar and knee pain, deficiency of labor and essence loss, dimness of the eyes and uncertainty, dizziness and tinnitus, impotence and spermatorrhea, blood deficiency and atrophy, internal heat and thirst (internal fever accompanied by symptoms such as eating more, drinking more and urinating more) and other symptoms. Lycium barbarum is a traditional Chinese medicine, the use of traditional Chinese medicine need to be in the professional Chinese medicine practitioner to identify the rational use of medication, to avoid blind use of medication, so as not to cause physical discomfort.