Exosome hair therapy in London: hype, evidence and what to ask
Exosomes are 2026's most-marketed hair regeneration treatment in London. The mechanism is real. The evidence is early. Here is how to evaluate it honestly.
Dr. Idris Khan
ISHRS Hair Restoration Surgeon

In short
- Exosomes are cell-signalling vesicles — not stem cells, despite frequent marketing claims.
- Early clinical data shows density gains comparable to or exceeding PRP in early AGA.
- London pricing: £800–£1,600 per session; courses of 2–3 sessions standard.
- MHRA classifies most exosome products as unlicensed — ask about source and certification.
Exosomes are 2026's most-marketed new hair treatment in London. The biology is genuinely interesting — cell-derived signalling vesicles carrying growth factors and microRNA — but the regulatory and evidence landscape is still maturing.
What the evidence shows
Small clinical trials (2023–2025) suggest exosome therapy produces density and shaft diameter improvements at 12 weeks comparable to, and in some studies exceeding, PRP. Long-term durability data is still missing.
Questions to ask in London
What is the source of the exosomes (placental, adipose, umbilical)? Is the product MHRA-approved or used under specials? What is the protein concentration per dose? How many sessions does the clinic recommend, and on what evidence?
Frequently asked
Common questions
Are exosomes legal in the UK?+
Most exosome hair products are classified as unlicensed in the UK and used under specials regulations. Always confirm regulatory status with your clinic.
Exosomes or PRP?+
PRP has the deeper evidence base and lower cost. Exosomes have promising early data and higher cost. Many London clinics now offer combination protocols.
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