What about patents?

Reliable, Qizihui is a patented technology transformation product of stem cells under Sichuan Huapu Xinbang Biotechnology Co., Ltd., and it is a company with very strong scientific research strength in the field of stem cells. My best friend was cured of hair loss and white hair in the health management institution of this company. She was also busy with work before, which led to serious hair loss and gray hair. It took two months, and she recovered, with infinite effect.