Compared with other stem cells, stem cell exosomes technology has stronger proliferation ability, extremely low immunogenicity, and convenient source. A large number of in vitro and in vivo experiments show that mesenchymal stem cells have potential therapeutic effects on many diseases, not only providing a new treatment method for a variety of difficult and complicated diseases in the fields of immune regulation, tissue repair, hematopoiesis promotion, Regenerative medicine, etc, It also shows great potential for application in beauty and anti-aging.