PRF vs. PRP for Hair Loss: What to Choose for Hair Restoration

PRP and PRF are both platelet-based treatments derived from your own blood. Both are used in hair restoration to support follicle health, improve density, and slow shedding. The difference comes down to how they’re prepared and how growth factors are delivered to the scalp.

This guide is for patients researching non-surgical hair restoration options and trying to understand what separates these two treatments before a consultation. It’s informational, but not a substitute for a medical evaluation or personalized treatment advice.

Key Takeaways

• PRP (platelet-rich plasma) and PRF (platelet-rich fibrin) both concentrate platelets from your own blood and deliver growth factors to the scalp via injection.
• PRF uses no anticoagulants and produces a fibrin matrix that may allow for a more gradual release of growth factors compared to PRP.
• Neither treatment works for all types of hair loss.
• Evidence for both is promising but still evolving. Results vary by patient, protocol, and underlying condition.
• Clinician experience and in-office protocol significantly affect outcomes. The treatment is only as good as its execution.
• Neither PRP nor PRF stops the underlying progression of androgenetic alopecia on its own. Maintenance and combination therapy are key to years of dense, healthy hair.

First, Make Sure You’re Treating the Right Type of Hair Loss

Before comparing PRP vs. PRF, it’s important to understand whether either is appropriate for your situation.

Hair loss has many causes, including androgenetic alopecia, telogen effluvium, alopecia areata, nutritional deficiencies, thyroid dysfunction, and scalp conditions. Platelet-based therapies are most commonly used for androgenetic alopecia (pattern hair loss). Platelet-based therapies are sometimes also used for telogen effluvium. They are not appropriate for scarring alopecia, where follicles have already been destroyed by fibrosis.

A comprehensive, professional evaluation, including scalp examination, history, and potentially labs or biopsies, determines what’s actually driving your hair loss. Understanding the reasons for thinning hair is the necessary starting point before any treatment decision. Choosing a treatment without knowing the cause may instead cause you to begin a treatment that won’t have any effect on your hair. 

What Is PRP for Hair Loss?

PRP treatment starts with a blood draw. An anticoagulant is added to the sample. Then, the sample is placed in a centrifuge, which separates it into layers of red blood cells, platelet-poor plasma, and platelet-rich plasma. The concentrated platelet-rich layer is extracted from the sample and injected into targeted areas of the scalp.

Platelets carry growth factors that play roles in tissue repair, cell proliferation, and blood vessel formation. The goal of scalp injections is to create a more supportive environment for follicles. This environment may potentially extend the active growth phase and improve hair shaft diameter over time.

Protocols for PRP vary considerably between clinics. Centrifuge speed, platelet concentration, injection depth, session frequency, and whether activating agents are used all differ depending on where you go. That variability can affect outcomes, so it’s worth asking about when you’re evaluating different providers.

What Is PRF for Hair Restoration?

PRF treatment for hair restoration starts with a blood sample, too. As with PRP, the sample is placed into a centrifuge, which separates the blood into layers. 

The key difference between PRF and PRP is that no anticoagulant is added to the blood sample before centrifugation. The sample is spun at a lower speed, which preserves more platelets, leukocytes, and stem cells within a fibrin matrix that forms naturally as the blood begins to clot.

That fibrin scaffold is the defining feature of PRF. Rather than a liquid concentrate injected immediately, PRF produces a gel-like material that releases growth factors more gradually as the fibrin breaks down. The theoretical advantage is a more sustained delivery window compared to PRP’s more immediate release.

Variants of PRF exist. For example, injectable PRF (i-PRF) is sometimes referenced in research and used in some clinical settings. Additionally, clinics practice different spin protocols. Since naming conventions and protocols are not fully standardized across clinics, it’s worth clarifying exactly what a provider means when they offer “PRF” if you’re exploring your options.

PRF vs PRP: Key Differences (Preparation, Additives, Growth Factors, Handling)

	PRP	PRF
Anticoagulant used	Typically yes	No
Centrifuge speed	Higher	Lower
Consistency	Liquid	Gel/fibrin matrix
Growth factor release	Understood to be more immediate	Understood to be more gradual (sustained)
Leukocyte (white blood cell) content	Variable	Generally higher
Additives	Sometimes (calcium chloride, thrombin)	None. Natural clotting only
Handling	Injected promptly after preparation	Used quickly as fibrin sets rapidly
Evidence base	Larger body of hair-specific literature	Smaller but growing

 

One point worth emphasizing: In-office technique, platelet concentration achieved, and clinician experience affect outcomes as much as which preparation is used. A well-executed PRP protocol from a skilled provider will outperform a poorly executed PRF procedure, and vice versa. 

Which Works Better for Hair Loss? What the Evidence Can (and Can’t) Say

The comparative research about PRP vs. PRF for hair loss is limited. Much of the PRF literature comes from dentistry, wound healing, and orthopedics. These are fields where it has a longer clinical history. Hair-specific studies exist but tend to be smaller and less standardized.

For PRP, the evidence base in hair restoration is more developed, though studies vary in patient populations, centrifuge protocols, platelet concentrations, session counts, and outcome measures. This makes direct comparisons difficult even within the world of PRP. Overall, results are promising, particularly for androgenetic alopecia, but not uniform.

Scientific language can get confusing, so here’s what you need to know about PRP vs. PRF for hair restoration:

Neither treatment has a clear, definitive edge in the hair loss literature at this point. PRF’s fibrin matrix and sustained-release profile are plausible advantages, but whether they translate to meaningfully better hair outcomes versus optimized PRP hasn’t been firmly established in controlled trials. No matter what, outcomes from these regenerative medicine options depend heavily on diagnosis and baseline follicle health.

Sessions, Results Timeline, and Maintenance: What Most Patients Can Expect

Most patients undergo an initial series of sessions for both PRP and PRF treatments. A series commonly includes four to six treatments spaced four to six weeks apart. Then, they often move into a longer-term maintenance schedule with treatments spaced farther apart. That said, protocols differ by clinic and by patient response.

The timeline for results is measured in months, not weeks. Hair growth cycles are long, and improvements in shedding, density, and shaft thickness take time to appear. Many patients notice the rate of shedding stabilizes within the first few months. Visible density improvements typically start to show between three and six months, with continued progress becoming visible through the first year.

Maintenance sessions, often every six to twelve months, are commonly recommended to sustain results. This isn’t optional fine print. The underlying cause of pattern hair loss doesn’t go away, and without ongoing support, the progression that PRP or PRF was slowing can start again without treatment. Combination therapy with hair loss products and medications like minoxidil or finasteride is often part of a long-term plan.

Side Effects, Risks, and Who Should Avoid PRP/PRF

Because both treatments use your own blood, allergic reactions are not a major concern for most clinicians and patients. 

Common short-term side effects include: 

• Temporary pain or tenderness at injection sites
• Mild swelling
• Itching
• Occasionally, headache or scalp discoloration

These typically resolve within a few days.

Patients with platelet dysfunction disorders, low platelet count, active infection at the treatment site, certain blood cancers, and chronic liver disease are typically not ideal candidates for PRF or PRP treatments. Additionally, patients who smoke heavily or are significantly anemic may see reduced treatment effectiveness due to platelet quality and count issues. NSAIDs and some supplements can affect platelet function, so it’s important to discuss your current medications with your provider before treatment. 

Sterile technique and a qualified medical setting are non-negotiable. Poorly administered injections carry risks that have nothing to do with the therapy itself.

Choosing Between PRP and PRF

The right choice depends on more than the treatment itself. Consider the following before committing:

• What’s your diagnosis? If it’s unclear what’s causing your hair loss, work to get a formal diagnosis from a qualified provider before spending money on either treatment.
  
• What is the provider’s specific protocol? Ask about the centrifuge method, platelet concentration approach, the number of sessions included, and what outcome documentation they provide. These will help you understand the science behind your care and understand if this regenerative hair restoration solution fits into your lifestyle before you embark on your journey.
  
• What are realistic expectations for your hair loss stage? Early androgenetic alopecia with intact miniaturized follicles responds better than advanced loss. Explore before-and-after images of people with similar hair loss to you who have received the treatment you’re considering.
  
• What combination therapies are recommended? PRP or PRF as a standalone treatment without addressing the underlying progression has limits. A good provider will discuss what adjunct therapies may help you reach your hair restoration goals.
  
• What does before-and-after documentation look like? Clinics with objective outcome tracking, standardized photography, and trichoscopy are a better indicator of serious practice than testimonials alone.

 

Explore non-surgical hair restoration options as part of a full picture, and schedule a consultation with Anderson Center for Hair to determine which approach fits your diagnosis, goals, and timeline.