Black Lycium barbarum puree is rich in various nutrients, among which the most distinctive components are proanthocyanidins, Lycium barbarum polysaccharides and anthocyanins. It has the functions of resisting oxidation, protecting liver, enhancing immunity, lowering blood pressure, caring skin and protecting eyesight. At present, there are many brands of black wolfberry puree on the market. The black wolfberry puree I bought the most was the black wolfberry puree from Qinghai CommScope. It is an authentic black wolfberry in Nuomuhong, Qinghai. It has always been picked manually, with slender white fruit stalks, bright colors, purple roots and higher nutritional content, which is better than other brands.