PRFM vs PRP
PRFM is PRP with one extra step. Calcium is added after the spin, so the plasma sets into a soft fibrin mesh that holds the platelets and lets them release their growth factors over days instead of minutes. PRP is the original version, and it is the one the research was done on. No study has put the two against each other, so PRFM's advantage is a reasonable theory rather than a measured result.
What is in the syringe
Blood is drawn and spun. Calcium is added, and the plasma turns into a loose mesh with the platelets caught inside it.
Blood is drawn and spun so the platelet-rich layer separates from the red cells. That liquid is what goes back in.
What the extra step is meant to do
Platelets carry growth factors, the proteins your body uses to direct repair. Held in a mesh, they are meant to give them up gradually.
Once platelets are activated, most of what they carry is released quickly.
What it is used for
Thinning hair, the sunken kind of acne scar, and general skin quality.
Scalp thinning is the biggest use by a wide margin.
How long until you see anything
It follows the PRP schedule, because there is no schedule of its own.
Usually three or four sessions, about a month apart, then a wait.
How long it lasts
No study has followed PRFM far enough past the last session to say.
Most clinics offer a maintenance session every six to twelve months.
What the evidence looks like
Very little has been published. That means barely tested, not tested and disappointing.
Pooled results from randomised trials show more hair density and thicker hairs than placebo. Methods differ a lot between trials, so the size of the gain is uncertain.
The downside
Once calcium goes in, the plasma starts to set, so it has to be injected quickly. The kit also costs more.
Spin speeds and kits differ, so two clinics can both sell "PRP" and produce quite different things.
Cost
Priced per session, and it is a course of sessions.
Ask what the whole course costs, not what one session costs.
The at-home or drugstore version
Nothing sold over the counter can spin your blood or set it into fibrin.
Serums labelled "growth factor" use proteins from other sources, not your platelets, and they sit on the surface.
Who each suits
Limited evidence and weak evidence are not the same thing
PRFM has limited evidence. That means it has barely been tested: A handful of small studies exist. None of them treated one group with PRFM and another with PRP and compared the results.
Weak evidence would mean something else: It would mean the studies were done properly and the treatment did not do much. That is not the situation here.
So the honest answer is that nobody knows yet: PRFM may turn out to be better. It may turn out to be the same treatment with a longer name and a higher price.
What the extra step actually changes
Adding calcium makes plasma clot, on purpose: Fibrin is the protein that forms the scaffold of a normal blood clot. Here it is formed in a tube so it can be injected while it is still soft.
Plain PRP is not clotted: It goes in as liquid, and the platelets are activated by the tissue itself once they are there.
Whether the difference matters in skin has not been shown: The argument for it is timing: a slower release should keep the signal going longer. That is laboratory reasoning, and it has not been tested on a scalp or a scar.
What neither one does
Neither one is a replacement for the standard hair treatments: Minoxidil and prescription tablets have far more evidence behind them, and platelet treatment is usually added to those rather than used instead of them.
Neither one works the same way twice: What comes out of the centrifuge depends on your blood that day, the kit, and the spin. That is a real reason results vary between people and between clinics.
Before you book
Ask which system the clinic uses and how many sessions the plan involves.
Ask what the whole course costs, including any top-ups in the first year.
Ask who draws and spins the blood, and whether the facility is licensed. Anything that involves handling blood belongs in a licensed setting with single-use equipment.
Ask what happens if nothing has changed at six months. You want to hear a plan, not another package.
