It doesn't belong to black tea or green tea. Su yiyuan is cooked tea. Su Yiyuan Formula U is based on basic research and applied research, integrating microbiology, natural product chemistry, nutrition and traditional Chinese medicine resources, and combining with the concept of great health. The formula of the product takes Suyiyuan fermented tea made by intelligent fermentation of 128 classic fungus prescription as the main raw material, supplemented by ingredients with homology of medicine and food such as chicory, gardenia, kudzu root, Phyllanthus emblica and mulberry leaves. , and added a scientific proportion of tea source probiotics. The formula has good flavor and taste characteristics of strong tea fragrance, obvious medicine fragrance, sweetness and smoothness.