Red Lycium barbarum has many functions such as protecting liver, regulating immunity, lowering blood pressure, lowering blood sugar and improving eyesight. The main function of Lycium barbarum is to enhance immunity and delay aging, because Lycium barbarum is rich in procyanidins and pure natural antioxidants. Red Lycium barbarum is best eaten from 7: 00 to 9: 00 in the morning and black Lycium barbarum from 3: 00 to 5: 00 in the afternoon.