If you currently participate in stem-cell, or prp, treatments, be advised ... there is currently a consumer warning on regenerative medical treatment products, including things like stem-cells and exosomes

https://forums.huduser.gov/forum/user-29906.html

A stem cell line is a lot of cells that every one descend from a solitary unique stem cell and also are expanded in a lab. Cells in a stem cell line continue to grow but do not separate right into specialized cells.