Treatments
PRP vs exosomes for hair: what to ask before you pay
Two injection options — what they are, safety basics, diagnosis first.
Clinics often pitch injections for thinning hair. PRP usually means concentrating platelets from your own blood; exosome products differ widely by source, lab, and what regulators allow where you live. Evidence and safety are not the same for both, and marketing can outrun data. This page equips questions for your clinician — it does not choose a product for you, and a clear diagnosis should still come first.
What PRP involves
PRP generally refers to concentrating platelets from your own blood for injection or application according to a clinic protocol. Preparation methods and treatment schedules differ between practices, which partly explains variable outcomes in published literature.
What exosome treatments involve
Exosome therapies may refer to extracellular vesicle preparations, often marketed as regenerative. Source, manufacturing, purity, and regulatory classification are not uniform globally. Ask what you are receiving, from where, and what evidence supports use for your diagnosis.
What research actually shows
Randomised trials exist for PRP in some contexts, with heterogeneity in technique and follow-up. Exosome therapies have a less mature evidence base for hair loss in many jurisdictions. Absence of long-term data should be part of informed discussion.
Safety, regulation, and red flags
Any injection carries infection, pain, and rare complication risk. Products should be traceable and compliant with local regulation. Be cautious of marketing that promises uniform regrowth or replaces medical assessment.
Who might even be a candidate
Candidacy depends on diagnosis, pattern, expectations, and what has already been tried. Many plans still prioritise established medical therapies where appropriate; see finasteride vs saw palmetto for context on oral options — always prescriber-led.
Before you book injections
Ensure diagnosis is clear, alternatives are understood, and photographic baselines are agreed. If you are evaluating surgical pathways or audit of past surgery, the ecosystem includes dedicated resources such as HairAudit — distinct from HLI’s biology-first medical interpretation focus (see HLI vs HairAudit).
Blood tests and general health (if your team suggests them)
Some teams check nutrition or thyroid markers before or with injections when your history fits. That is the same selective approach as elsewhere — see what blood tests matter for hair loss.
Related topics
Conditions
Symptoms
Who wrote this and who checked it
Articles are drafted for patient clarity, then reviewed for medical accuracy under HLI editorial standards. Sources are listed where they help you verify claims; this education still does not replace an exam or plan from your own clinician.
Author
Hair Longevity Institute Editorial
Clinical education
Trichology-led medical writing
Reviewer
HLI Clinical Review
Medical accuracy review
Senior trichology sign-off before publication; same review standard across insight articles.
Frequently asked questions
Which works better, PRP or exosomes?
Head-to-head trials in hair loss are limited. Outcomes depend on diagnosis, technique, product quality, and follow-up. Be wary of universal claims.
Are exosome injections legal where I live?
Regulation differs by country and product class. Ask whether the preparation is approved for your indication and traceable to a reputable source.
Should I skip medical therapy and do procedures only?
Many guidelines still prioritise established medical options where appropriate. Procedures may be adjuncts, not automatic replacements.
What if my concern is past surgery quality?
That is a different kind of question — closer to surgical review and transparency. See our HLI vs HairAudit page to see where that fits.
References & further reading
- American Academy of Dermatology. Hair loss: treatment options to discuss with a dermatologist.
- U.S. FDA. Consumer update — stem cell and related products (regulatory caution for unapproved “regenerative” claims).
- Gentile P et al. Autologous PRP in alopecia: overview with trial context (PMC open access).
Related articles
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- ConditionsPost-transplant shock loss: what to expectShock loss is a term for temporary shedding around a hair transplant. This article covers broad timing patterns, when to message your clinic, how general health and labs may sit alongside aftercare, and emotional expectations — without replacing your surgeon’s instructions.Read →
- Hair loss causesHLI vs HairAudit: where to startHair Longevity Institute is built around long-term hair health, labs, education, and follow-up. HairAudit focuses on hair transplant review, transparency, and surgical due diligence. This page helps you decide where to start; it does not replace advice from your own doctors.Read →
- TreatmentsMinoxidil: how it works and what to expectMinoxidil is a common topical option for some types of pattern hair loss. This article explains the basic idea, why some people shed more at first, how long before you might judge results, and why your diagnosis still guides whether it is appropriate.Read →
Browse by topic: Blood markers · Hair loss causes
Next steps
Read more on HLI
Explore hubs on causes, blood markers, and treatment planning — written for patients and clinicians who want biology-first context.
When to consider blood tests
If shedding is new, severe, or accompanied by systemic symptoms, structured blood review may be appropriate. HLI can help interpret results you already have or suggest what to discuss with your GP.
When to book a specialist consult
Rapid progression, scarring signs, pain, or uncertainty after initial tests are reasons many people choose a dedicated consultation for sequencing and clarity.
When HairAudit is the better destination
If your primary question is surgical transparency, audit, or procedural due diligence, HairAudit focuses on that pathway within the Hair Intelligence ecosystem.