Exosome hair therapy is the injection into the scalp of the tiny vesicles (exosomes) that cells release to carry messages to one another. It is a cell-free treatment: no living cells are given, and no tissue matching is needed. I work with two sources: exosomes derived from human mesenchymal stem cells, and plant-derived vesicles. This is a field where the evidence is still developing; I set expectations accordingly. I do not work with products that lack documentation.
I am a specialist in anaesthesiology and reanimation; blood sampling, sterile technique and injection safety are core areas of my training. I perform hair treatments within this framework, carrying out every step of preparation and application myself. The types of hair loss and the steps of treatment are on the hair loss treatment page.
What are exosomes, and what is the aim in hair?
Exosomes are membrane-bound vesicles that cells release to carry proteins and signalling molecules to neighbouring cells; they are not cells, they do not divide, and they do not settle in the tissue. When delivered into the scalp, they are intended to carry signals to the cells around the follicle; the outcome data in humans are set out in the evidence section below. The structure of exosomes, how they are obtained, and the skin application are on the exosome skin therapy page.
Two sources: human-derived and plant-derived
Human-derived exosomes. These are exosomes derived from mesenchymal stem cells; in the products I work with, the source is Wharton’s jelly tissue. It is not the cell itself but the vesicles the cell releases that are used. Given as a single session.
Plant-derived vesicles. These are exosome-like vesicles obtained from plant cells. Their content differs from that of human-derived exosomes; they are given within a plan spread over several sessions.
The choice of source depends on the goal and the session plan: when single-session completion is preferred, human-derived exosomes come to the fore; when support spread over several sessions is planned, plant-derived vesicles do. The final choice is made at consultation.
I do not present either source as superior to the other; the goal, the session plan and the consultation findings determine which one is chosen.
Sessions and duration
The application takes 20–30 minutes. The product is delivered into the scalp with fine needles using mesotherapy technique.
- Human-derived exosomes: a single session. A second session is considered no earlier than 6 months later, according to the consultation findings.
- Plant-derived vesicles: 3–5 sessions, 3 weeks apart. Once the course is complete, I plan one maintenance session every 3 months.
I do not sell a number of sessions as a package up front; within the course, too, I decide according to the response.
Its relationship with drug treatment
In hereditary hair loss, the treatments with the highest level of evidence are topical and oral drug treatments. I plan injection methods alongside these treatments, not instead of them; we assess the suitability and follow-up of drug treatment together at consultation.
When do I consider it?
- Early-to-moderate hereditary hair loss: where the hair has thinned but the follicle is alive.
- Female pattern diffuse thinning: once the diagnostic step is complete.
- The healing period in someone who has had a hair transplant: the timing is planned together with the team that performed it; injections are not given in the early period.
In areas where the follicle has been lost completely and the skin is smooth, exosomes will not produce hair. I do not claim that exosomes replace a hair transplant or improve the survival of transplanted follicles; there is no source for this.
How it differs from the other methods
Exosomes are cell-free and come from an external source; PRP is prepared from your own blood and aims to stimulate the follicle with growth factors. Among the injection methods I use for hair loss, PRP is the one whose randomised trials have been assessed in meta-analyses; the certainty of that evidence is low. I do not describe exosomes as a “stronger version” of PRP. The option prepared from your own blood is on the PRP for hair page.
Being honest about the level of evidence
Human data on exosomes in hair loss are still scarce. A 2026 systematic review of regenerative methods found only three small studies (89 people in total) on extracellular vesicle (exosome) treatments; the only randomised trial among them used a topical formulation, and the single-session injection data come from a retrospective study. The review notes that study protocols differ from one another and that long-term data remain limited 1. A review of registered clinical trials, most of them in indications other than hair and skin, reports a lack of standards in product definition, dosing and reporting 2. For plant-derived vesicles I could not find a controlled human study in hair; what I write in that section is based on the manufacturer’s information and my clinical practice. This is why I do not describe exosomes as a treatment that “stops hair loss”, why I give no percentages, and why I set expectations according to where the evidence stands.
The procedure and pain management
Because I am an anaesthesiologist, I treat pain management as a separate part of the procedure.
Topical anaesthetic cream is not used routinely on the scalp; for very sensitive people it is applied before the treatment. What you feel is a brief sting.
Aftercare
First 24 hours
- Do not wash your hair (you can wash it the next day)
- No hot showers, sauna, hammam or steam
- Avoid heavy exercise
- No alcohol
- Do not touch the injection points; do not squeeze or massage the bumps
First 48 hours
- Avoid direct and prolonged sun exposure; wear a hat outdoors
Expected findings Mild redness and tenderness at the injection points are expected and settle the same day. Small bruises may last 1–2 days.
Additional advice
- Wait 2–3 days before hair dye and similar chemical treatments
- If redness increases, or warmth or fever develops, contact the clinic
- After a hair transplant, the timing is planned in line with the team that performed it
Safety and anatomy
Because allergic reactions can occur rarely, treatments are carried out under medical supervision.
The product is cell-free; because no living cells are given, tissue matching is not required. Temporary redness, tenderness and small bruises may occur at the injection points; the expected durations are given in the aftercare section. Treatment is postponed if there is an active infection on the scalp.
Product documentation: I obtain the exosome products I use from accredited laboratories that hold a cGMP production permit approved by the Turkish Medicines and Medical Devices Agency (TİTCK) of the Ministry of Health. The laboratories’ operating status can be checked on TİTCK’s manufacturer and distributor search page. Every product I work with comes with its own certificate showing the production process and the analysis results. Products are transported in the cold chain and used once opened. I do not work with a product that has no documentation. Brand and manufacturer names are not the subject of this page; we discuss which product is used at consultation.
Who is not suitable
Treatment is not performed, or is postponed, in the following situations:
- Active infection or inflammation in the treatment area
- Autoimmune disease in an active phase
- Pregnancy and breastfeeding
- Known hypersensitivity to the product components
- Uncontrolled chronic illness
- Untreated bleeding disorder or unregulated anticoagulant use
I do not perform these treatments during active cancer treatment. For a person with a history of cancer, I make the decision together with the treating specialist.
Treatment is postponed if there is an open wound or an active flare of seborrhoeic dermatitis on the scalp, and in the early period after a hair transplant; injections are not given in alopecia areata during an active phase.
For a person on immunosuppressive treatment, the decision is made at consultation.
Without being a medical contraindication, I also consider expectation and treatment to be mismatched in these situations:
- People expecting hair to grow in an area where the follicle has been lost completely and the skin is smooth — a hair transplant is considered in that situation
- People expecting a marked change from a single session or within a short time
- People asking for injections straight away for undiagnosed hair loss — the diagnostic step comes first
Suitability is determined by consultation in every case.
Pricing
Under the applicable regulations, price information cannot be published on our website. The cost of a treatment depends on the product used, the technique chosen and the extent of the treatment. You can call the clinic for detailed information.
Frequently asked questions
Is exosome hair therapy a stem cell transplant?
No. Exosomes are not the stem cell itself but the vesicles the cell releases. No living cells are given; no tissue matching is needed; the vesicles do not settle in the tissue and do not divide. It is therefore not a cell transplant but a cell-free signalling treatment.
Is there a cancer risk with exosome hair therapy?
Exosomes are not cells; they do not divide and do not settle in the tissue. However, because they carry growth signals, there are not enough data on their long-term safety in a person with a history of cancer; this is why I do not say “there is no risk”. I do not perform these treatments during active cancer treatment. For a person with a history of cancer, I make the decision together with the treating specialist.
When does exosome hair therapy work?
No immediate effect is expected. A reduction in shedding is reported in the weeks following the first session, and thickening and density within months; it varies from person to person, and some people report no marked difference. With human-derived exosomes, I consider a second session no earlier than 6 months later.
Planning your visit
My clinic is in Nişantaşı, Şişli, on the European side of Istanbul, approximately 45 minutes from Istanbul Airport.
For exosome hair therapy I suggest planning a stay of two to three days: arrival, consultation and treatment, and departure. Human-derived exosomes are given in a single session, so the treatment is completed within one visit. If the plant-derived option is chosen, it is planned as a series and requires more than one visit: the first session takes place in Istanbul, and we plan the schedule of the following sessions together according to your travel arrangements, with remote follow-up in between. Flying is generally appropriate 24 hours after an injectable treatment.
Consultations are conducted in English. Follow-up after you return home is arranged remotely, and I remain reachable for any questions during the period in which the result develops.
Dr. Ömer Fatih Şahin — Specialist in Anaesthesiology and Reanimation Diploma Registration No: 113606
Published: 22 February 2026 · Last updated: 2026-09-21 This content has been medically reviewed by Dr. Ömer Fatih Şahin.
References
- Behrangi E, Amiri S, Zeinali R, et al. A systematic review of clinical evidence on the efficacy and safety of conditioned media, platelet-rich fibrin, stromal vascular fraction, extracellular vesicles, and stem cells in androgenetic alopecia. Stem Cell Res Ther. 2026;17:194. https://pubmed.ncbi.nlm.nih.gov/41987228/
- Wang Y, Zhu J, Ma Q, et al. Trends in mesenchymal stem cell-derived extracellular vesicles clinical trials 2014–2024: is efficacy optimal in a narrow dose range? Front Med. 2025;12:1625787. https://pubmed.ncbi.nlm.nih.gov/41048938/