Hair loss is one of the more emotional concerns discussed in clinic because it can feel like a loss of control. PRP and PRF are both autologous blood-derived treatments used in regenerative hair-loss practice, but injections should not come before understanding why the hair is thinning.
PRP and PRF in simple terms
Both treatments begin with a blood sample that is processed to concentrate platelet-rich components before being reintroduced into the scalp.
PRP (platelet-rich plasma) uses plasma with a concentrated platelet fraction. Preparation systems vary, which means the final platelet and leukocyte composition can differ between protocols.
PRF (platelet-rich fibrin) is prepared differently and forms a fibrin matrix. It is often discussed as providing a more gradual release of platelet-derived factors, although protocols and comparative evidence continue to evolve.
Neither is universally “better”
The original Face for Soul article compared the two, but the more important clinical question is whether platelet-based treatment is appropriate for the cause of hair loss in the first place. A newer acronym is not automatically a better treatment.
Start with the cause of hair loss
Hair shedding and thinning can result from many different processes:
- androgenetic pattern hair loss;
- telogen effluvium after illness, stress or rapid weight loss;
- iron, B12, folate or other nutritional issues;
- thyroid disease and other medical conditions;
- menopausal or hormonal change;
- inflammatory or scarring scalp disorders;
- medication effects.
Some of these need GP, dermatology or laboratory assessment before an aesthetic treatment is considered.
What the evidence says about PRP
PRP has a larger published evidence base for androgenetic alopecia than PRF. Systematic reviews and clinical studies report improvements in hair density or thickness in some patients, but protocols vary considerably and outcomes are not guaranteed.
What about PRF?
PRF is used in regenerative practice and is biologically plausible as a scalp treatment, but direct high-quality comparisons with established PRP protocols are more limited. It should therefore not be promoted as proven superior for menopause-related or other forms of hair loss without stronger evidence.
Men and women may need different investigations
Male-pattern and female-pattern hair loss can both have androgenetic components, but diffuse female shedding is particularly important to assess for nutritional, thyroid, hormonal and recent weight-loss factors. Post-GLP-1 shedding may reflect rapid weight loss and nutritional stress rather than a direct drug effect on follicles.
Maintenance and expectations
Platelet-based treatments are not permanent cures for progressive pattern hair loss. If they are used, a course and maintenance may be discussed, and medical hair-loss treatments may also form part of care where appropriate and prescribed by a suitably qualified clinician.
When referral matters
Sudden patchy loss, scarring, significant scalp inflammation, pain, rapid progression or signs of systemic illness deserve medical or dermatological assessment rather than an automatic injection package.
Read about hair loss and thinning and PRP & PRF.
What the evidence is strongest for
PRP has the larger evidence base, particularly for androgenetic alopecia. Recent systematic reviews of randomised trials report improvements in hair density in some studies, but also emphasise heterogeneity in preparation protocols, platelet concentrations, injection schedules and study quality. That means PRP can be described as a potentially useful adjunct without presenting it as a guaranteed regrowth treatment.
Why PRP studies are hard to compare
“PRP” is not one standard product. Different centrifugation systems produce different platelet and leukocyte concentrations. Some studies activate PRP, others do not; injection depths and treatment intervals also vary. This lack of standardisation is one reason meta-analyses reach cautious conclusions even when many individual studies report improvement.
PRF has less hair-specific evidence
PRF is biologically interesting because of its fibrin matrix and slower release profile, but direct high-quality evidence for scalp hair loss is much smaller. It should not be marketed as automatically superior to PRP merely because it is newer.
Frequently asked questions
Will PRP work for telogen effluvium?
The strongest evidence is for pattern hair loss, not every cause of shedding. Telogen effluvium often improves by addressing the trigger, such as illness, rapid weight loss or nutritional deficiency.
Do I need blood tests first?
Not every patient, but diffuse shedding, rapid change or symptoms suggesting thyroid or nutritional problems may justify GP or specialist investigation.
Can PRP replace minoxidil or other medical treatment?
Not necessarily. It may be used alongside established medical treatments where appropriate rather than replacing them by default.
This article provides general information and does not replace diagnosis or medical assessment of hair loss.