Why aren't more US doctors using PRF platelet rich fibrin rather than offering just the regular PRP platelet rich protein?​

The slower spinner device is relatively reasonably priced & there are impressive before & after pictures showing results with a dr using this amazing source. He also explains in detail the better benefits of PRF compared to PRP. I think the slower spinner machine might be called eclips- but I don't recall. Spinning at a slower spin, with the current PRP machines do not work. This small sized slower spinner model only yields the wonderful PRF results needed!