Yan Hemei's stem cells are normal. According to the inquiry of official website, Yan Hemei Stem Cell Regenerative Medicine Technology (Guangzhou) Co., Ltd. has registered its trademark, obtained the certification from the industrial and commercial department and has a complete business license. It was incorporated in Guangzhou Huadu District Administration for Industry and Commerce on January 18, 221 with a registered capital of RMB 1 million. The office address is located at Room 8, 12th Floor, Building 2, Gaosheng Plaza, No.163 Yingbin Avenue, Huadu District, Guangzhou, China.