If you've been researching non-surgical hair loss treatments, you've probably come across PRP therapy. It's one of the most talked-about options in the hair restoration world right now — and for good reason. It uses your body's own biology to stimulate hair growth, has minimal downtime, and the clinical evidence is increasingly promising.

But does it actually work? Let's break down exactly what PRP therapy is, how it's performed, what the research shows, and whether you're a good candidate.

What Is PRP Therapy?

PRP stands for platelet-rich plasma. It's a concentration of platelets derived from your own blood that contains a high level of growth factors — proteins that play a key role in tissue repair and cellular regeneration.

The concept is straightforward: we draw a small sample of your blood, spin it in a centrifuge to separate and concentrate the platelets, and then inject that platelet-rich plasma directly into your scalp. Those concentrated growth factors are believed to stimulate dormant hair follicles and promote new growth.

The Growth Factors That Matter

Platelet-rich plasma contains several bioactive proteins that are relevant to hair growth:

Platelet-Derived Growth Factor (PDGF) — stimulates blood vessel growth and cell replication
Vascular Endothelial Growth Factor (VEGF) — promotes blood supply to the hair follicle
Epidermal Growth Factor (EGF) — promotes cell growth and tissue regeneration
Fibroblast Growth Factor (FGF) — promotes wound healing and cell proliferation
Transforming Growth Factor (TGF) — plays a role in cell growth and differentiation

These growth factors work together to create a biological environment that supports follicle health and can potentially reactivate follicles that have entered a dormant state.

How the PRP Procedure Works

The entire process typically takes about 30 to 60 minutes and involves three main steps:

Step 1: Blood Draw

A standard blood draw is performed — usually 10 to 60 milliliters, similar to a routine lab test. This is your blood, so there's zero risk of allergic reaction or rejection.

Step 2: Centrifugation

The blood sample is placed in a centrifuge, a device that spins at high speed to separate the blood components. This process concentrates the platelets into a small volume of plasma — typically achieving a concentration 3 to 5 times greater than baseline. Some providers use a single-spin method, while others use a double-spin protocol for a higher platelet concentration.

Step 3: Injection

The concentrated PRP is injected into the areas of the scalp experiencing thinning. Most providers use a fine needle and may apply a topical anesthetic or use a nerve block to manage discomfort. Injections are typically spaced about one centimeter apart across the treatment area.

What the Clinical Evidence Shows

This is where PRP gets interesting. The body of research has grown substantially over the past decade, and the results are genuinely encouraging — though it's important to understand the nuances.

Hair Count Increases

A 2019 systematic review and meta-analysis published in Dermatologic Surgery analyzed multiple randomized controlled trials and found that PRP therapy resulted in a statistically significant increase in hair count compared to placebo. Several studies reported increases in hair density of 30 to 40 percent over the course of treatment.

A randomized controlled trial published in Aesthetic Plastic Surgery in 2019 found that PRP-treated subjects had significantly greater hair density and hair thickness compared to the control group after three sessions.

Hair Thickness and Quality

Beyond raw hair count, PRP has been shown to improve hair shaft thickness. This matters because thicker individual hairs create the appearance of greater fullness, even when the total number of hairs doesn't change dramatically.

Longevity of Results

Most studies show that PRP results are maintained with periodic maintenance sessions. Without maintenance, gains tend to gradually diminish over 12 to 18 months.

Who Is a Good Candidate for PRP?

PRP therapy tends to work best for specific patient profiles:

Early to moderate hair thinning — PRP is most effective when follicles are miniaturizing but not yet completely dormant
Androgenetic alopecia — both male and female pattern hair loss respond well to PRP
People who want a non-surgical option — PRP involves no incisions, no scarring, and minimal downtime
Those looking to complement other treatments — PRP works well alongside minoxidil, finasteride, or low-level laser therapy

When PRP May Not Be Ideal

PRP is less likely to produce significant results if you have:

Advanced baldness where follicles have been dormant for years
Scarring alopecia
Active scalp infections or skin cancer
Certain blood disorders or on blood-thinning medications
Heavy smoking habits, which impair blood flow and healing

Treatment Protocol and Timeline

Most providers recommend an initial series of three to four treatments, spaced four to six weeks apart. After the initial series, maintenance sessions are typically scheduled every four to six months to sustain results.

You can expect to start noticing changes — reduced shedding, improved hair texture — within two to three months. More visible regrowth typically becomes apparent at the six-month mark, with continued improvement up to 12 months.

How Much Does PRP Cost?

PRP therapy is generally not covered by insurance since it's considered a cosmetic procedure. The cost varies by provider and geographic location, but here's what you can typically expect:

Initial series (3-4 sessions): $1,500 to $3,500 total
Individual maintenance sessions: $400 to $800 per treatment
Annual maintenance cost: $800 to $1,600

Compared to hair transplant surgery, PRP is significantly less expensive. It's also less invasive and requires no recovery time.

Combining PRP with Other Treatments

One of PRP's greatest strengths is how well it works in combination with other hair loss therapies. Many of the best outcomes we see involve a multi-modal approach:

PRP + Minoxidil (Rogaine): Minoxidil maintains existing hair while PRP stimulates new growth
PRP + Finasteride (Propecia): Finasteride addresses the hormonal root cause while PRP provides growth stimulation
PRP + LLLT: Low-level laser therapy can enhance the cellular response created by PRP
PRP + Hair Transplant: PRP can accelerate healing and improve graft survival after transplantation

Realistic Expectations

Let's be straightforward about what PRP can and cannot do:

PRP can:

Slow down progressive hair loss
Increase hair density in areas of active thinning
Improve hair shaft thickness
Complement and enhance other treatments

PRP cannot:

Regrow hair in completely bald, smooth areas
Permanently cure pattern hair loss
Replace the need for DHT-blocking medications in androgenetic alopecia

PRP is not a one-time fix. It's an ongoing treatment that requires commitment to maintenance sessions. But for patients who want a non-surgical, drug-free approach that uses their own biology, it's one of the most promising options available today.

What to Look for in a PRP Provider

Not all PRP treatments are created equal. The quality of the results depends heavily on:

Platelet concentration — ask what concentration your provider achieves (higher isn't always better, but a concentration of 3-5x baseline is generally considered therapeutic)
Injection technique — proper depth and distribution across the scalp matters
Centrifuge quality — medical-grade centrifuges produce more consistent results
Treatment protocol — beware of providers who promise results from a single session

This is exactly the kind of situation where working with a specialist who coordinates with medical professionals makes a difference. At MyHairLoss STL, we connect patients with providers who follow evidence-based PRP protocols and can guide you through the process from consultation through maintenance.

Is PRP Right for You?

The best way to determine whether PRP therapy is appropriate for your specific situation is to get a proper evaluation. Hair loss has many causes, and the right treatment depends on your diagnosis, the extent of your loss, your goals, and your budget.

Schedule a free consultation to discuss whether PRP therapy could be part of your hair restoration plan. We'll evaluate your situation, explain your options, and connect you with the right medical professionals — no pressure, no gimmicks, just honest guidance.

PRP Therapy for Hair Loss: Does It Actually Work?