Zhejiang university's patented strain and france's import of high-quality and fertile bacteria, which are from formal sources and are subject to market testing, have been selected with a variety of formalities. In order to ensure product quality, the 3-step quality control system has a gmp workshop, 3200m2 laboratories, with more than 2000m2. The production process is carried out strictly in accordance with national standards. There is a set of technical standards for the fermentation of prophylactic strains to input production. The fermentation process is carried out by the selection of bacterial strains that can be generationally nurtured and capable of genetic excellence; the fermentation environment is closely monitored; and, ultimately, the progeny strains that can be self-inflicted in the human intestinal tract are selected for production. And we added to the product a life-saving formula -- low-polymers, ash. It is a dietary supplement that provides humans with non-indigestionary soluble dietary fibres, feeds prophylactics, breeds prophylactics and inhibits the reproduction of harmful bacteria. We added the ash powder from one of the world's three main suppliers, the dutch firm sensus。