Lycium barbarum L. has the functions of protecting liver and tonifying kidney, inhibiting fatty deposition of liver cells and promoting liver cell regeneration. Eating some medlar properly can prevent the occurrence of night blindness. Lycium barbarum can obviously inhibit the formation and spread of cancer cells. The results of contemporary experiments and clinical application show that Lycium barbarum can significantly improve and improve the immune function and physiological function of the elderly, the infirm and the tumor patients, and has the functions of strengthening the body and delaying aging. Lycium barbarum can obviously improve human energy reserve, improve human vitality and have anti-fatigue effect. Lycium barbarum is rich in Lycium barbarum protein, vitamin C and other nutrients. If you can drink it regularly, you can keep fit. Lycium barbarum polysaccharide, one of the effective components rich in Lycium barbarum peel, has obviously enhanced hematopoietic function and immune function.