Step 1
Your blood is drawn — typically from your arm — and put into a centrifuge (a machine that spins rapidly to separate fluids of different densities).
Step 2
After about 10 minutes in the centrifuge, your blood will have separated into in three layers:
- platelet-poor plasma
- platelet-rich plasma
- red blood cells
Step 3
The platelet-rich plasma is drawn up into a syringe and then injected into areas of the scalp that need increased hair growth.
There hasn’t been enough research to prove whether PRP is effective. It’s also unclear for whom — and under what circumstances — it’s most effective.
According to a recent studyTrusted Source, “Although PRP has sufficient theoretical scientific basis to support its use in hair restoration, hair restoration using PRP is still at its infancy. Clinical evidence is still weak.”