According to official website, Sister Xie's probiotic freeze-dried powder is genuine. Sister Xie's probiotic freeze-dried powder has been registered by the administrative department for industry and commerce, and has the business qualification to produce and sell probiotic freeze-dried powder. Moreover, Sister Xie's probiotic freeze-dried powder has been supervised by the market supervision and management department, and its probiotic freeze-dried powder produced and sold conforms to the regulations of the State Food and Drug Administration and has a national certification certificate.