Andrew Huberman· PhD
The claims that PRP actually contains stem cells are very, very feeble, and when you look at the literature and you talk to anyone expert in the stem cell field, they will tell you that it's, the number of stem cells in PRP is infinitesimally small. In fact, so much so that these places that inject PRP for injuries are not allowed to advertise through the use of the words stem cells. It's actually illegal at this point, at least as far as I know.