Look into Celltex out of Houston, TX. They have been around a long time, quite reputable, they even treated one of the governors of Texas who credits them with solving his medical problem.
They use your own stem cells, multiply them over a several week period, then re-inject. Completely safe since it's your own cells. A local doctor of your choice in your home town extracts the stem cells and air freights them to Texas. So you don't even have to go to Texas.
The only catch is you have to fly to their partner hospital in Mexico for re-injection, because the US only allows stem cells to be re-injected the same day, which means they cannot be multiplied. So there is travel involved. But in Mexico it's simply an IV injection of your own cells that were prepared and air freighted in from Houston. So it's quick and safe.
https://celltexbank.com/