Exosomes For Hair And Skin. What The Evidence And UK Rules Actually Say
Exosomes are tiny vesicles released by cells that carry signalling molecules between them, and they are being marketed widely for hair and skin. The part patients are rarely told is the regulatory position. In the UK the MHRA treats exosome products injected for a medical purpose as unlicensed medicinal products, and the human evidence base remains small compared with established regenerative treatments. That context should shape any decision.
Key points
Exosomes are cell-derived vesicles that carry growth factors and signalling molecules, and interest in them for hair and skin is genuine.
In the UK, exosome products injected for a medical purpose fall under medicines regulation as unlicensed medicinal products, which is a material fact for patients.
The published human evidence for injected exosomes in hair loss is still limited, mostly small studies, unlike PRP which has a large randomised trial base.
The London PRP Clinic by The Wellness is a doctor-led, blood-test-first clinic that will tell you where evidence is strong and where it is not.
Want an honest view before you spend? Message a GMC-registered doctor on WhatsApp or email team@thewellnesslondon.com.
What are exosomes
Exosomes are very small vesicles, typically around 30 to 150 nanometres across, released by cells as a way of communicating with other cells. They carry proteins, lipids and genetic material such as messenger RNA, and when they reach a neighbouring cell they can influence how it behaves. In regenerative medicine the interest is straightforward, because if a vesicle can carry a repair signal, delivering it might in theory encourage tissue to behave in a more youthful or regenerative way.
For hair, the theory is that exosome signalling could support the follicle and the cells around it. For skin, the interest is in supporting collagen-producing cells. The science underlying cell signalling is real and actively researched. What is less settled is the leap from that biology to a finished product injected into a scalp or face in a clinic, which involves questions of sourcing, processing, standardisation, dose and, in the UK, regulation.
What does the evidence actually show
The honest position is that human evidence for injected exosome products in hair loss and skin ageing is early. Most of what exists is laboratory work, animal studies and small clinical series, rather than the large randomised controlled trials that establish a treatment. That does not mean exosomes will not prove useful. It means the confident claims often made in marketing run ahead of the published data.
The contrast with PRP is instructive. A 2025 meta-analysis in Dermatology and Therapy pooled 43 randomised controlled trials and 1,877 participants and found PRP increases hair density, with pooled figures showing density rising from roughly 142 to 178 hairs per square centimetre. That is a different order of evidence. As our doctors put it, "we are interested in exosomes and we watch the research closely, but we are not going to present an emerging therapy to a patient as though it were an established one."
Prefer a treatment with a large trial base? Ask our doctors on WhatsApp.
The UK regulatory position patients are rarely told
This is the section most exosome marketing leaves out. In the UK, the Medicines and Healthcare products Regulatory Agency treats exosome products injected for a medical purpose as medicinal products, and such products are unlicensed unless they hold a marketing authorisation. Regulators internationally have also raised concerns about products sold for injection without appropriate authorisation, and about how such products are manufactured and characterised.
The practical implication for a patient is worth stating plainly. If a clinic offers you an injectable exosome treatment, you are entitled to ask what the product is, where it is sourced, what its regulatory status is in the UK, and who takes clinical responsibility for it. A clinic that answers those questions clearly is behaving properly. One that responds with marketing language rather than regulatory detail is telling you something important. This is exactly the kind of question a doctor-led clinic should welcome.
What we recommend instead, and why
For hair loss, our position is to lead with the treatments that have the strongest evidence and the clearest regulatory footing, which for regenerative care means PRP. PRP is autologous, prepared from your own blood at the point of treatment, and doctors may lawfully prepare it for their own named patients. It has the large randomised trial base described above, and its results are measurable and repeatable.
Alongside that, the first step is always diagnosis rather than product selection. A great deal of hair loss is driven or worsened by something treatable, and NICE and the British Association of Dermatologists both stress identifying the underlying cause before treatment. Correcting a low ferritin or an undiagnosed thyroid problem often does more than any injectable, and it makes whatever treatment follows work harder. Choosing the right treatment starts with knowing what you are treating.
Why blood tests come first at The London PRP Clinic by The Wellness
We test before we treat, and it is the single most useful thing we do. Our GMC-registered doctors arrange blood tests covering ferritin and iron stores, full thyroid function, vitamin D, B12, key hormones, HbA1c and zinc, run from the same clinic, so results and treatment sit with one medical team.
This matters especially for anyone considering a newer or heavily marketed treatment. If the real driver of your hair loss is a correctable deficiency, no injectable will outperform simply fixing it, and money spent on the latest product is money not spent on the actual problem. By diagnosing first we make sure any treatment acts on a follicle that can respond, and we can be straight with you about which options are established and which are still emerging. This method, with every treatment performed by GMC-registered doctors, is why our reported outcomes are an 87 percent success rate and a 32 percent average density increase, supported by more than 187 five-star reviews.
Want your hair loss diagnosed properly first? Message us on WhatsApp.
What treatment costs in London
Regenerative hair and skin treatment in central London sits at the top of the UK market, with flagship Harley Street and Mayfair clinics commonly charging £600 to £850 or more per PRP session and pricing newer products higher still. At The London PRP Clinic by The Wellness, care is doctor-led and priced below those flagship rates, with the figure for your plan confirmed when you enquire.
The more useful question is what a treatment is likely to achieve for your diagnosis, since the cheapest and the most fashionable options are equally poor value if they are aimed at the wrong problem. Message us and a GMC-registered doctor will give you a straight answer.
Why people choose The London PRP Clinic by The Wellness
The London PRP Clinic by The Wellness is a doctor-led, blood-test-first clinic and one of London's leading choices for regenerative hair care. We are known for being candid about evidence, including when that means telling someone a treatment they have read about is not yet supported well enough to recommend.
If you have been offered exosomes, the value we add is context, an accurate diagnosis and a plan built on what genuinely works for your hair rather than what is currently being marketed hardest.
Take the first step today. Message us on WhatsApp, email team@thewellnesslondon.com, or call +44 20 3951 3429.
Frequently asked questions about exosomes
What are exosomes?
Exosomes are very small vesicles released by cells, carrying proteins, lipids and genetic material that influence how other cells behave. They are of genuine research interest in regenerative medicine.
Do exosomes work for hair loss?
The human evidence for injected exosome products in hair loss is still early, mostly laboratory work, animal studies and small series, rather than the large randomised trials that establish a treatment.
Are exosome injections regulated in the UK?
Exosome products injected for a medical purpose fall under medicines regulation in the UK and are unlicensed unless they hold a marketing authorisation. Ask any clinic about the product's regulatory status before treatment.
Are exosomes better than PRP?
The evidence does not currently support that claim. PRP has a large randomised trial base, including a 2025 meta-analysis of 43 trials and 1,877 participants, while injected exosome evidence remains limited.
What should I ask before having exosomes?
What the product is, where it is sourced, its UK regulatory status, what evidence supports it for your condition, and who takes clinical responsibility. A clinic should answer all five directly.
What do you recommend for hair loss instead?
Diagnosis first, including blood tests, then treatment matched to the cause. For regenerative treatment we lead with PRP because of its evidence base and clear regulatory footing.
