PRP or PRF for hair loss: what is the difference, and which works best?

What are PRP and PRF?

Both PRP and PRF are treatments that use components from your own blood to stimulate the follicles. In both, a small amount of blood is taken from the patient and centrifuged to separate out the constituents containing the growth factors of interest. The difference lies in how the blood is processed, and what the end product contains.

PRP stands for platelet-rich plasma. Here the blood is centrifuged, often with an anticoagulant added (a substance that prevents clotting), to obtain a liquid plasma with a high concentration of platelets and their growth factors, which is then injected into the scalp.

PRF stands for platelet-rich fibrin. Here the blood is centrifuged without anticoagulant and at a lower speed. The result is a softer, more gel-like product in which the platelets are embedded in a network of fibrin. PRF is often marketed as the 'second generation', a more natural, slower release of growth factors.

The claimed difference

The argument for PRF over PRP rests on a couple of points. First, PRF contains the fibrin network, which theoretically acts as a 'scaffold' that holds the growth factors in place and releases them more slowly and over a longer period, unlike PRP, where the release is more of a rapid burst. A slower, more sustained release should in theory give the follicles a longer period of stimulation.

Second, PRF is prepared without anticoagulant, which advocates highlight as more 'natural', since no foreign substances are added. PRF also often contains a larger proportion of certain white blood cells and stem cells. It sounds convincing, but as always we have to ask whether this theoretical superiority actually shows up in better results for the patient. And here the picture is less clear than the marketing suggests.

What does the evidence say?

PRP has the longer and better documentation of the two. The evidence for PRP in hair loss is moderate: several studies show a beneficial effect on hair density, especially as a supplement, although protocols vary and the effect is not dramatic. That makes PRP one of the better documented injection treatments.

PRF is newer, and the documentation is correspondingly thinner. The theoretical advantage of slower release is plausible, but there is a lack of solid, direct comparisons convincingly showing that PRF gives better hair results than PRP in practice. In other words: PRF may prove slightly better, but that is not yet proven. When a clinic presents PRF as clearly superior, it is going further than the evidence supports.

Advantages and disadvantages of PRP

Advantages:

• The better documented of the two, with moderate evidence of an effect on density.
• Uses your own blood, safe and well established.
• Useful as a supplement, including to support healing after a transplant.

Disadvantages:

• Requires repeated sessions to maintain the effect.
• Uses an anticoagulant, which some regard as less 'natural'.
• A faster release of growth factors than PRF.

Advantages and disadvantages of PRF

Advantages:

• A slower, more sustained release of growth factors (in theory).
• Prepared without anticoagulant, no added substances.
• Often contains more white blood cells and a fibrin scaffold.

Disadvantages:

• Thinner documentation; the claimed superiority is not proven for hair results.
• Newer and often more expensive, without correspondingly stronger evidence.
• Sometimes marketed as a 'breakthrough' that exaggerates the real difference.

A comparison at a glance

The table shows the honest situation: PRF has some theoretically attractive properties, but PRP has the stronger documentation. The difference between them is probably smaller than the marketing suggests, and for most patients the choice between them is not decisive for the result.

My clinical position

My pragmatic position is that both PRP and PRF are reasonable supplements with moderate to uncertain evidence, best used as an addition to a solid foundation rather than as a standalone solution to hereditary hair loss. Neither stops the DHT driven process behind your thinning; well documented medication does.

If I have to choose, I lean towards PRP for the simple reason that it has the better documentation. I am sceptical of clinics that charge markedly more for PRF by pointing to a superiority that has not yet been proven. If you use one of them, the most logical application is as a supplement, for example to support healing and the start of growth after a transplant, where I do see a sensible role for them.

Frequently asked questions

Is PRF really better than PRP? Theoretically perhaps, but that is not proven for hair results. PRP has the stronger documentation, so the claim of PRF's superiority should be treated with caution.

Can they replace medication? No. Neither PRP nor PRF stops hereditary, DHT driven hair loss. They are supplements, not a foundation that can replace Finasteride and Minoxidil.

How many treatments are needed? Typically an initial series followed by maintenance a couple of times a year. That should form part of your assessment of the total cost.

Are they safe? Yes, since both use your own blood. The main drawbacks are the discomfort of the injections and the ongoing cost, not the safety.

When do PRP or PRF make the most sense?

In my experience there are two situations in particular where I see a sensible role for PRP or PRF. The first is as a supplement to medical treatment in a patient who wants to make an extra effort to preserve and thicken their existing hair, and who is willing to invest in a series of treatments with ongoing maintenance. Here the moderate, documented effect of PRP in particular can be a meaningful addition.

The second situation is in connection with a hair transplant. Several clinics, including many experienced ones, use PRP around the operation to support healing and encourage an earlier, stronger start to growth in the transplanted grafts. Here the treatment makes good sense as an integrated part of the process, and I do see a reasonable justification for it. In both cases, though, PRP and PRF are helpers, not lead players, they support what works rather than replacing it.

How to see through the marketing

Because PRF is marketed as the 'new and better' version, it is worth knowing how to take a critical view. When a clinic offers PRF at a markedly higher price than PRP on the grounds that it is more advanced, ask for the documentation: which studies show that PRF gives better hair results, not merely a theoretically slower release, than PRP? In the great majority of cases the answer will be vague, because that documentation does not yet exist in convincing form.

That does not mean PRF is bad, it is a sensible treatment. It simply means the difference in price is often not justified by the evidence. My recommendation is to treat the choice between PRP and PRF as less important than the marketing suggests, and instead to focus on what really matters: that your foundation is well documented medication, and that the clinic you choose is honest about what the treatment realistically can and cannot do. A clinic that exaggerates the advantages of PRF is telling you something indirectly about how honest it is in other areas.

The bigger picture: where injection treatments fit in

If you take one message from this article, let it be this: both PRP and PRF are helpers, not heroes, in the fight against hair loss. They can support, strengthen and encourage, but they cannot carry a treatment plan on their own, and they do not change the underlying hormonal process that drives hereditary hair loss. It is a point I repeat, because it is so easy to lose sight of when you are sitting through a convincing sales presentation of the latest injection treatment.

Placed correctly in the bigger picture, however, they make good sense. Picture a staircase: the bottom, load-bearing step is well documented medication, which does most of the work of preserving your hair. The next step is well considered supplements such as microneedling, and PRP or PRF can also belong here, as an extra effort for those who want it, and with a sensible role around any transplant. The top step, if it becomes necessary, is surgery that rebuilds what could not be preserved.

What holds the whole staircase up is not the individual elegant step, but a solid foundation. A patient who skips the documented foundation in favour of expensive injections is building on sand. A patient who places PRP or PRF on top of a well founded base is using them as they should be used. Choose your clinic and your treatment on that understanding and you will be far better off than someone led by whatever is being marketed most loudly at the moment.

And finally, remember: whichever injection treatment you choose, the honest conversation with your practitioner matters more than the choice between PRP and PRF itself. A clinic that explains the treatment's real, moderate role and does not oversell it is a clinic you can trust in the areas that matter even more to your result.

Conclusion

PRP and PRF are related treatments that use the growth factors in your own blood to stimulate the follicles. PRF has some theoretically attractive properties, a slower release, no anticoagulant, but PRP has by far the better documentation, and the real difference between them is probably smaller than the marketing suggests.

Both are sensible supplements, best used on top of a solid medical foundation and possibly to support healing after a transplant. Do not let a clinic persuade you to pay markedly more for PRF on the basis of an unproven superiority. This article is informative and does not replace an individual medical assessment.