Exosome Therapy vs PRP for Hair Loss: An Honest UK Comparison
If you are researching non-surgical hair loss treatments, exosome therapy and PRP are almost certainly the two options coming up next to each other. They are the two most-talked-about regenerative treatments in the UK, and they are often presented as alternatives.
Let’s compares them honestly. Not “both are magic and you should book today” and not “ours is better because we do it.” Hair Revive specialises in exosome therapy and does not offer PRP, so if you decide after reading that PRP is the better fit for your case, we will tell you what to look for in a PRP clinic and point you in a sensible direction.
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PRP vs. Exosomes: The Short Answer
PRP has the more developed evidence base today. It has been studied in dozens of randomised controlled trials, has moderate support for increasing hair density in pattern hair loss, and sits in a clearer UK regulatory category because it uses your own blood.
Exosome therapy has a smaller but growing evidence base, offers some practical advantages around delivery and patient experience, and is an emerging treatment in a category that is unlicensed and under active regulatory attention. Both are reasonable options for early-to-moderate pattern hair loss in people who still have living follicles.
Neither is a licensed NHS treatment.
The right answer for you depends on your specific pattern of loss, your appetite for established evidence versus newer, but rapidly evolving science, your preference for an injection-based versus a topical treatment, and your budget.
| Exosome therapy (Hair Revive protocol) | PRP therapy | |
|---|---|---|
| What it is | Signalling vesicles in a prepared solution | Concentrated platelets from your own blood |
| Source of material | External laboratory source (salmon-derived E50 Exosome) | Autologous (your own blood, drawn on the day) |
| Standardisation | Consistent from session to session, defined manufacturing | Varies session to session depending on your blood and preparation method |
| Delivery | Unlicensed category; Hair Revive protocol sits outside the MHRA's specific injection and human-biologicals concerns | Autologous biological product; off-label for hair loss; clearer established category |
| Strength of clinical evidence | Emerging: small studies, two RCTs in a 2025 systematic review of eleven studies | More developed: 2025 meta-analysis of 43 RCTs with 1,877 participants |
| NICE / NHS status | Not NICE-recommended or NHS-provided | Not NICE-recommended or NHS-provided |
| Typical course | 3 to 6 initial sessions, 4 to 6 weeks apart, plus maintenance | 3 to 6 initial sessions, 4 to 6 weeks apart, plus maintenance |
| Downtime | Minimal | Minimal (possible mild soreness, occasional bruising) |
What the Treatments Entail
Each treatment is unique in its own way.
PRP
PRP For Hair Loss
PRP stands for platelet-rich plasma. A small sample of your blood (usually ten to twenty millilitres) is drawn from your arm, spun in a centrifuge to separate the platelets and plasma from the red and white cells, and then injected into your scalp where the hair is thinning.
The active ingredients are the platelets themselves. When activated, they release a range of growth factors (PDGF, TGF-β, VEGF, EGF and IGF-1 are the best-known). Delivered into the scalp, these are thought to support the dermal papilla cells that orchestrate the hair growth cycle, prolong the active growth phase, and encourage miniaturising follicles to produce thicker hairs.
PRP for hair loss is delivered as a short course, typically three to six sessions spaced four to six weeks apart, followed by maintenance. Each session usually takes around forty-five minutes to an hour, and most patients return to normal activities the same day. Mild scalp soreness, redness and occasional small bruises at injection sites are the common side effects.
Exosomes
Exosomes for Hair Loss
Exosomes are tiny signalling parcels that cells release naturally, packed with growth factors, microRNA and other molecules. Exosome therapy for hair loss delivers a concentrated preparation of these parcels to your scalp, on the theory that they can prompt follicle cells to function better.
At Hair Revive we use the E50 Exosome preparation, which is salmon-derived, and we deliver it topically combined with microneedling and the TargetCool system, not by injection.
How They Actually Work Differently
Both treatments aim at the same biological target: supporting the dermal papilla, extending the growth phase, and encouraging miniaturising follicles to produce thicker hair. They approach it with different raw materials, and the difference is worth understanding.
PRP
Your Own Biology
PRP's attraction is that the material comes from your own body, which removes most of the safety concerns around foreign biological preparations. The trade-off is variability.
The quality of your PRP on any given day depends on your platelet count, your plasma composition, how the sample is processed, whether the PRP is activated before delivery, and the exact protocol your clinic uses. Two PRP sessions at two different clinics can be meaningfully different treatments. The evidence base recognises this as a real limitation.
Exosomes
Standardised External Preparation
Exosome therapy delivers growth factors and microRNA in membrane-bound vesicles from a defined laboratory source. The preparation is standardised, which means the treatment you receive in one session is very close to the treatment you receive in the next.
Supporters argue this addresses PRP's variability problem. Critics point out that the external source, the unlicensed regulatory category and the limited clinical evidence mean standardisation alone is not a clinical win yet. Both points are fair.
What the Research Shows
This is where the two treatments differ most clearly.
PRP
The Bigger Evidence Base
PRP has been studied extensively for pattern hair loss. A 2025 systematic review and meta-analysis in Dermatology and Therapy identified forty-three randomised controlled trials covering 1,877 participants. It concluded that activated PRP is effective in increasing hair density and reducing shedding, with moderate-quality evidence supporting safety and efficacy.
The same review noted heterogeneity in protocols and a moderate risk of bias across studies. A separate 2024 systematic review in the Journal of Cosmetic Dermatology reached a similar conclusion.
PRP is not a guaranteed treatment, and it is not on every dermatologist's first-line prescription pad. It is, however, an evidence-supported option with more than a decade of published study.
Exosomes
Smaller exciting evidence, growing rapidly
Exosome therapy has a smaller but rapidly growing evidence base. A 2025 systematic review in Clinical, Cosmetic and Investigational Dermatology pulled together eleven clinical studies, including two randomised controlled trials. All reported improvements in hair parameters, with no serious adverse events.
The reviewers are explicit that the studies are small, the follow-up is short, and the exosome sources and preparations vary. In other words: early signals are positive, but the evidence is not yet at the scale of PRP.
Exosomes
Our Experience at Hair Revive
We began offering E50 Treatment to our clinic in early 2025.
The pattern we see in practice is broadly consistent with what the wider exosome literature reports: where patients have early-to-mid-stage pattern hair loss and follicles are still present, many go on to see improvements in density and hair condition over the course of treatment.
In cases where follicles are no longer active or the hair loss is advanced, the response is limited, which is why we assess every patient before agreeing a course.
This is clinical observation from practice, not a published audit, and we describe it that way. It informs how we approach patient selection and contributes to our confidence in the protocol. It is not a substitute for peer-reviewed evidence, and we are not presenting it as such.
Clinical Observations at The Hair Revive Clinic
We've proudly offered E50-H Treatment for over a year in our Clinic and tracked our own visitors progress over time.
Visit our Results Page to some of the transformations we've achieved:
VISITOR RESULTS →
The UK Regulatory Picture
The regulatory position for each treatment is different, and it is worth understanding why.
PRP
A Clearer Picture
PRP uses your own blood and is classified in the UK as an autologous biological product, rather than as a medicinal product requiring marketing authorisation. That puts it in a clearer regulatory space than exosomes.
PRP for hair loss is used off-label, which means there is no specific UK licence for PRP in androgenetic alopecia, but the category itself is well-established, and PRP is regularly delivered in CQC-registered medical and aesthetic clinics across the UK. PRP is not recommended by NICE for hair loss and is not provided on the NHS. Advertising claims for PRP are governed by the CAP Code and the ASA.
Exosomes
Under Attention
Exosomes are classified by the MHRA as advanced therapy medicinal products, and no exosome product has been granted a UK marketing authorisation for any therapeutic or aesthetic indication.
The MHRA has been specifically concerned about injected exosomes in aesthetic procedures (per a Save Face patient safety warning quoting the MHRA), and UK cosmetics regulation separately restricts the use of human-derived biological material in cosmetic contexts.
Note that neither of those specific concerns describes what we do at Hair Revive, where the preparation is salmon-derived, topical rather than injected, and provided under medical oversight.
The short version
PRP sits in a category that is established and clear, even if the specific use for hair loss is off-label.
Exosome therapy is in a newer category that is unlicensed and still being shaped by regulators, and the specific protocol used by a clinic matters. Neither fact should be the only thing driving your decision, but both belong in your thinking.
What a Session Actually Feels Like
The patient experience is meaningfully different between the two treatments, and for some people this decides the choice.
PRP
A Typical PRP Session
The session begins with a blood draw, usually ten to twenty millilitres from your arm, which is then spun in a centrifuge for around ten minutes while you wait. The clinician cleanses the scalp, applies a topical anaesthetic, and injects the prepared PRP into the scalp in a structured pattern using a fine needle.
The injections feel similar to other intradermal scalp procedures: pinches or short bursts of sensation. The session takes forty-five minutes to an hour. You can return to normal activities the same day. Scalp soreness for a day or two afterwards is common, and small bruises at injection sites are possible.
PRP is not a guaranteed treatment, and it is not on every dermatologist's first-line prescription pad. It is, however, an evidence-supported option with more than a decade of published study.
Exosomes
A Session at Hair Revive, Birmingham
No blood draw, no needle injections. The scalp is cleansed, the E50 preparation is applied topically, and we use microneedling with the TargetCool system to help it travel down into the scalp.
Most patients describe the session as a quiet, low-intensity experience. You can return to normal activities the same day. Mild scalp redness and transient sensitivity are the usual after-effects.
AI Scalp Scan
We assess the affected area at a microscopic level with our AI Scalp Scan.
Microneedle the Area
We pass a microneedle across the affected treatment area.
Apply E50-H Exosome
The E50-H Exosome Treatment is topically applied to the prepared area.
Apply TargetCool
TargetCool is applied to make the process more comfortable and support treatment.
For patients who are needle-averse, or who have reasons to avoid a blood draw (certain medications, a difficult phlebotomy history), the topical exosome protocol is a meaningfully different option. For patients who are comfortable with injections and prefer a treatment that uses their own blood, PRP is often the more comfortable psychological fit.
The Bottom Line: Which Treatment is Right for You?
Note that this is just a guideline and a proper consultation will tell you which of these apply to your case before a treatment plan is agreed.
PRP
You prefer a treatment that uses your own biological material
You are comfortable with injections and have no issue with blood draws
You want the option with the more developed evidence base today
Cost per session is a significant factor
Exosomes
You want to avoid injections and prefer a topical-plus-microneedling protocol
You prefer a standardised preparation over a product made from your own blood each session
You have specific reasons to avoid a blood draw
You are comfortable with an exciting newer treatment in an evolving regulatory category
Neither treatment is the right answer if:
Your follicles have shrunk to dormancy in the areas you want to treat (a transplant conversation may be more appropriate)
You have a scarring alopecia
You have an active scalp infection or inflammatory skin condition in the treatment area
You are pregnant or breastfeeding
You have a medical condition that makes either treatment clinically unsuitable
Can They Be Combined?
In some clinical settings, yes. Some clinicians use PRP and exosome therapy together, on the theory that PRP delivers autologous growth factors and volume, exosomes deliver standardised signalling molecules, and the combined effect may be more than either alone.
The evidence for combined protocols is still limited, and the regulatory picture becomes more complex because the two treatments have different regulatory classifications.
Hair Revive does not offer PRP, so we do not offer a combined PRP-and-exosome protocol. If that is what you are looking for, a clinic that offers both is the right answer. We would rather tell you that than pretend otherwise.
Is Exosome Hair Restoration Therapy Right For You?
In a world of endless serums, tinctures and procedures it's easy to feel like you're going round in circles.
Exosome Therapy isn't for everybody, and we're upfront about that.
Our 2 Minute Suitability Quiz helps you get a clear picture on whether to proceed with this Treatment or not.
Frequently Asked Questions About PRP Treatment
On today's evidence, not clearly, and the answer depends on what you mean by "better." PRP has a more developed evidence base, with a 2025 meta-analysis covering 43 randomised controlled trials. Exosome therapy has a smaller but growing body of evidence and offers some practical advantages around standardisation and non-injection delivery. Direct head-to-head trials are limited. The right answer for your case is a conversation rather than a blanket claim.
No. PRP is not recommended by NICE for hair loss and is not provided as a routine NHS treatment. PRP for hair loss is delivered privately in CQC-registered medical and aesthetic clinics across the UK.
Both treatments have a favourable safety profile in published studies, with mild, local and short-lived side effects being the most commonly reported issues. PRP uses your own blood, which removes most foreign-material concerns but introduces the variables of a needle procedure. Exosome therapy uses an external preparation, which places more weight on the sourcing and quality control of that preparation. Neither is without risk, and your consultation should review the specific considerations for your case.
Some UK clinics offer both. Hair Revive specialises in exosome therapy and does not offer PRP, so if you are looking for a combined protocol or for PRP as a standalone, a different clinic is the right answer.
Hair follicles respond over months rather than weeks, so both treatments ask for patience. Patients typically report reduced shedding first, within the first one to two months, and measurable density or thickness changes from three months onwards, with the fullest response often visible at six months. Individual response varies, and a responsible clinician will set expectations for your case.
That depends on why minoxidil did not work for you. A failure to respond can mean the pattern of loss is more advanced than the drug can help with, that application was not consistent enough over the twelve months typically needed to see a response, or that miniaturisation is concentrated in areas where the topical drug has limited access. A consultation will look at your pattern of loss in detail and advise whether PRP, exosome therapy, a combined approach with minoxidil, or a different route is the most sensible next step.
Look for CQC registration where the clinic operates in England, GMC registration for the clinician with clinical responsibility, and an open, specific answer when you ask what product or preparation they use and how it is delivered. A clinic that will not give you those answers is not giving you the due diligence you are entitled to expect.
The Best Time To Start Your Hair Restoration Journey? Yesterday.
The second best time? TODAY!
If you're ready to start making meaningful progress towards fuller, thicker hair, then get in touch today.
We are honest and transparent about your potential, and will always set clear expectations, even before you visit us.
So what have you got to lose? Get in touch Today.
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Hair Revive at Dr Aesthetica
Unit 1, 1431–1433 Bristol Road South
Birmingham, West Midlands B31 2SU