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Stem cell therapy for hair loss.

Clinics inject secretome, your own fat cells, scalp micrografts or exosomes into thinning hair. In small trials they added a modest amount of hair for a few months, and only where hair was still thinning rather than gone.[1][2]

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Written by Eli McGarvie.

Clinics that treat hair loss.

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ClinicConditionsTreatmentsPrice from
Longevity Medical InstituteSan José del Cabo, Mexico Hair lossKneeShoulderHip MesenchymalExosomesIVInjections USD 1,750 Regeneris TherapyCancún, Mexico Hair lossKneeBack painFace MesenchymalExosomesIVInjections Not disclosed Dream Body ClinicBucerías, Mexico Hair lossKneeHipShoulder MesenchymalUmbilical cordIVInjections USD 1,750 Stem Cells ColombiaMedellín, Colombia Hair lossKneeShoulderHip Umbilical cordMesenchymalExosomesInjections USD 1,399 Medeze GroupNakhon Pathom, Thailand Hair lossBack painFace Mesenchymal Not disclosed

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MexicoFromUSD 1,7503 clinicsColombiaFromUSD 1,3991 clinicThailandFromNot published1 clinic

What is stem cell hair treatment?

It is a scalp treatment that puts cell products into thinning hair to wake up shrinking follicles. Clinics use the name for four different things, and it is worth knowing which one you are being sold.[3]

Secretome

The liquid that fat-derived stem cells were grown in, injected into the scalp. It has the most trial evidence of the four.[1]

Your own fat cells

Cells taken from your belly or thigh by liposuction, processed the same day and injected into the scalp.[2]

Scalp micrografts

Small skin samples from the back of your head, broken up in a device and injected straight back in the same session.[4]

Exosomes

Particles made by donor cells, sold as a ready-made vial and injected or applied after microneedling. It has the weakest evidence.[5] About exosomes

What to expect

The procedure

Numbing cream, then fine injections about a centimetre apart across the thinning area, or the product spread over the scalp straight after microneedling.[6][7] Patients describe the appointment as under an hour with no time off work.[8] Fat-cell treatments add a liposuction under local anaesthetic.[2]

How many sessions

Trials used anything from one session to six monthly sessions.[9][10] Clinics most often sell a package of three, and patients report being told the results need regular top-ups.[8]

When it works, and how long it lasts

Hair counts started to change at eight to 16 weeks in trials and peaked at three to six months.[11][2] The gains did not last: in the two trials that followed people for a year, the difference from placebo had gone by the 12-month mark.[12][2]

Who it suits, and who it doesn't

Trials enrolled healthy adults with early to moderate thinning, where follicles are still present.[13][14] People with advanced or completely bald areas, scarring hair loss, thyroid disease or a bleeding disorder were excluded or did worse.[13][15]

Side effects

Scalp pain, itching and redness for a day or two are common.[6][7] Fat-cell treatments add bruising at the liposuction site for under a week.[16] Unregulated exosome injections have caused lumps with permanent scarring, skin death and an allergic reaction,[17][18][19] and the FDA issued a safety notice in 2019 after serious reactions to exosome products.[20]

Modest gains for a few months, on thinning hair only

Does it work? A little, while you keep having it. The trials are small and short, and several were run by the companies selling the product.

About 9more hairs per square centimetre than control, in the three randomised trials of secretome, at up to 16 weeksPooled review, 8 trials, 221 people[1]
No differencefrom a saltwater injection at 24 weeks in the largest fat-cell trialSTYLE trial, 71 people, company funded[2]
Gone by 12 monthsCultured scalp cells beat placebo at 6 and 9 months, but not at a yearPlacebo-controlled trial, 65 people[12]
22 of 49patients who reported an outcome online described a clear improvement. 12 of them had started another hair treatment at the same time.Our review of patient accounts on Reddit and forums[8]

Where it is allowed

United States. No stem cell, secretome or exosome product is FDA-approved for hair loss.[21][20] The FDA has sent warning letters to companies selling exosome and cord products for hair.[22][23]

Malaysia. Donor, lab-grown and exosome products must be registered with the Drug Control Authority before a clinic can use them.[24]

Mexico. COFEPRIS has said stem cell treatments lack authorisation.[25]

Specialists. The American Hair Loss Association does not endorse stem cell or exosome hair treatment outside clinical trials.[26]

Stem cells vs PRP for hair loss

PRP has much stronger evidence. Across 13 placebo-controlled trials it added about 28 hairs per square centimetre,[27] three times the secretome figure, and adding fat cells to PRP did not improve results in the one randomised comparison.[28]

Patients who tried both report mixed results, and one could not tell PRP and exosomes apart at nearly double the price.[8] Some clinics sell PRP under a stem cell name, so ask what is actually in the syringe.[26] PRP vs stem cells

Stem cells vs a hair transplant

They do different jobs. A transplant moves living follicles into bald areas. Cell treatments were only tested on thinning hair, and no trial has shown new follicles growing on a bald scalp.[2][13]

Patients who had been through both mostly say the money is better spent on a transplant once an area is visibly bald. Clinics also sell exosomes as a transplant add-on to help the grafts heal, which is a different promise from regrowth.[8]

Common questions

Is it permanent?

No. Where trials followed people past six months the gains faded,[12][2] and like minoxidil and finasteride the treatment has to be repeated to keep any result.[29]

Does it work for alopecia areata?

Only small case series without a comparison group have tested it.[30] Three JAK inhibitor pills are FDA-approved for severe alopecia areata on much larger trials.[31][32]

Questions to ask a clinic

  1. Is it secretome, my own fat cells, micrografts or exosomes?
  2. Which lab made it, and can I see the certificate for this batch?
  3. Has it been kept frozen, or is it freeze-dried?
  4. Should I try finasteride or minoxidil first?
  5. Is the area you will treat thinning, or already bald?
  6. How many sessions, and what will maintenance cost each year?
  7. Will you photograph the same spot of my scalp before and after?

Sources

32 references
  1. Chien WY, et al. Stem cell-derived conditioned medium for alopecia: A systematic review and meta-analysis. Journal of Plastic, Reconstructive & Aesthetic Surgery, 2024. Link
  2. Kuka G, et al. Cell Enriched Autologous Fat Grafts to Follicular Niche Improves Hair Regrowth in Early Androgenetic Alopecia. Aesthetic Surgery Journal, 2020. Link
  3. Behrangi E, 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 Research & Therapy, 2026. Link
  4. Krefft-Trzciniecka K, et al. Short-Term Clinical Assessment of Treating Female Androgenetic Alopecia with Autologous Stem Cells Derived from Human Hair Follicles. Biomedicines, 2024. Link
  5. Al Ameer MA, et al. Exosomes and Hair Regeneration: A Systematic Review of Clinical Evidence Across Alopecia Types and Exosome Sources. Clinical, Cosmetic and Investigational Dermatology, 2025. Link
  6. Legiawati L, et al. Combination of adipose-derived stem cell conditioned media and minoxidil for hair regrowth in male androgenetic alopecia: a randomized, double-blind clinical trial. Stem Cell Research & Therapy, 2023. Link
  7. Wan J, et al. A Prospective Study of Exosome Therapy for Androgenetic Alopecia. Aesthetic Plastic Surgery, 2025. Link
  8. StemFinder review of first-hand patient accounts on Reddit and patient forums, 2026. Method
  9. El-Khalawany M, et al. Efficacy of autologous stromal vascular fraction injection in the treatment of androgenic alopecia. Archives of Dermatological Research, 2023. Link
  10. Fukuoka H, et al. Hair Regeneration Treatment Using Adipose-Derived Stem Cell Conditioned Medium: Follow-up With Trichograms. Eplasty, 2015. Link
  11. Tak YJ, et al. A randomized, double-blind, vehicle-controlled clinical study of hair regeneration using adipose-derived stem cell constituent extract in androgenetic alopecia. Stem Cells Translational Medicine, 2020. Link
  12. Tsuboi R, et al. Autologous cell-based therapy for male and female pattern hair loss using dermal sheath cup cells: A randomized placebo-controlled double-blinded dose-finding clinical study. Journal of the American Academy of Dermatology, 2020. Link
  13. Kerastem Technologies, LLC. Subcutaneous Transplantation of Autologous Cell Enriched Adipose Tissue For Follicular Niche Stimulation in Early Stage Alopecia Androgenetica (STYLE): a Randomized, Blinded, Controlled Trial. ClinicalTrials.gov, 2015. Link
  14. Cosmedician AP Sdn Bhd. A Prospective, Randomized, Triple-blind Comparative Study of Exosome and Exosomes-containing Formulation Versus Placebo in Treating Alopecia. ClinicalTrials.gov, 2022. Link
  15. Sasaki GH. Clinical Use of Extracellular Vesicles in the Management of Male and Female Pattern Hair Loss: A Preliminary Retrospective Institutional Review Board Safety and Efficacy Study. Aesthetic Surgery Journal. Open Forum, 2022. Link
  16. Moneib H, et al. Successful Treatment of Female Pattern Hair Loss with Injection of Autologous Adipose-derived Adult Stem Cells: A Controlled Clinical, Trichoscopic, and Immunohistochemical Trial. International Journal of Trichology, 2025. Link
  17. Park KY. Adverse Reactions Following Intradermal Injection of Exosome-Based Formulations: A Case Series. Journal of Cosmetic Dermatology, 2025. Link
  18. AlBargawi S. Necrosis Following Dermal Injection of Lyophilized Exosomes: A Case Report. Journal of Cosmetic Dermatology, 2025. Link
  19. Zhuang J, et al. Treatment of Anaphylaxis After Injection of Stem Cell Exosomes With 5-Fluorouracil and Triamcinolone Acetonide. The Journal of Craniofacial Surgery, 2023. Link
  20. U.S. Food and Drug Administration. Public Safety Notification on Exosome Products. 2019. Link
  21. U.S. Food and Drug Administration. Approved Cellular and Gene Therapy Products. 2026. Link
  22. U.S. Food and Drug Administration. Warning Letter: New Life Medical Services, LLC, 711102, 09/24/2025. 2025. Link
  23. U.S. Food and Drug Administration. Warning Letter: R3 Medical Companies, 726330, 08/14/2026. 2026. Link
  24. National Pharmaceutical Regulatory Agency, Ministry of Health Malaysia. Guidance Document and Guidelines for Registration of Cell and Gene Therapy Products (CGTPs) in Malaysia, Second Edition (September 2025). 2025. Link
  25. Comisión Federal para la Protección contra Riesgos Sanitarios (COFEPRIS). La COFEPRIS suspendió clínica del D.F. que ofrecía tratamientos con Células Madre sin aval científico. Gobierno de México, COFEPRIS (press release), 2015. Link
  26. American Hair Loss Association. Stem Cells and Exosomes in Hair Loss Treatment: Hope or Hype? 2025. Link
  27. Kieling L, et al. Is autologous platelet-rich plasma capable of increasing hair density in patients with androgenic alopecia? A systematic review and meta-analysis of randomized clinical trials. Anais Brasileiros de Dermatologia, 2024. Link
  28. Behrangi E, et al. Evaluation of the effects of adding an adipose tissue-derived stromal vascular fraction to platelet-rich plasma injection in the treatment of androgenetic alopecia: A randomized clinical trial. Skin Research and Technology, 2024. Link
  29. American Academy of Dermatology. Finding the right treatments for genetic hair loss. 2022. Link
  30. Anderi R, et al. Cellular therapy with human autologous adipose-derived adult cells of stromal vascular fraction for alopecia areata. Stem Cell Research & Therapy, 2018. Link
  31. Bulgaru-Iliescu AI, et al. Exosome-Based Therapies for Alopecia Areata: A Systematic Review of Clinical and Experimental Evidence. International Journal of Molecular Sciences, 2025. Link
  32. U.S. Food and Drug Administration. Drug Trials Snapshots: LEQSELVI. 2024. Link

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