Autologous conditioned serum
Autologous conditioned serum, also known as Orthokine and Regenokine, is an experimental procedure in which a person's own blood is extracted, manipulated, and then reintroduced with claimed benefit in osteoarthritis. There is limited evidence on safety and effectiveness as of 2017.
Source: Wikipedia — Autologous conditioned serum (CC BY-SA 4.0)