Exosome Hair Therapy: What Is Applied to the Scalp and How
Exosome hair therapy, also called an exosome scalp treatment, means a clinician microneedles the scalp and applies a product that contains exosomes. There is no agreed protocol and only early evidence. As of the FDA's 2019 notice, no exosome product was approved. Here is what a visit involves and what to ask.
Hair loss can have medical causes. See a doctor or dermatologist before starting any treatment.
Last editorial check: October 15, 2026Sources listed belowNo promises of results
What goes on the scalp
Exosomes are tiny membrane-bound particles that cells release. They carry proteins, fats and genetic material. Products sold for hair use exosomes collected from cultured human cells, such as cells from fat tissue or the umbilical cord, and from other sources such as plants or fish. A review of the field notes that sources, isolation methods and dosing differ a lot between products (PMID 42756864).
That variety is the first reason results from one product do not carry over to another. The second is that no standard exists for how much to apply or how often.
Is an exosome scalp treatment different?
Clinics use "exosome scalp treatment" and "exosome hair therapy" for the same kind of visit. Ask three plain questions whatever the label says: what is being applied, where does it come from, and what paperwork can the clinic show?
Who does it
Rules differ by state, so check who is allowed to perform microneedling where you live. The FDA says microneedling can count as a medical procedure when the device is meant to change the structure or function of tissue, and it recommends choosing a provider trained in microneedling. Look up the license of the person who will treat you on your state board's website.
A session, step by step
Consultation
Medical history, medicines, scalp check. This is where a clinician should ask about causes of thinning that need a doctor first.
Clean the scalp
The skin is cleaned before anything touches it.
Microneedling
A device makes many tiny punctures in the skin. The depth and the device vary by clinic.
Product on the treated skin
The exosome product is applied to the scalp. In the studies we read it was applied topically, right after the microneedling.
Aftercare
Written instructions from the clinic. Follow them rather than anything you read online, including here.
How many sessions and how far apart
A 2026 randomized trial used four sessions over 12 weeks (reported in PMID 42756864). An exploratory 2026 trial used six sessions over three months (PMID 42363148). The review says dosing and schedules are inconsistent across studies. Once we have collected prices, we will show the number of sessions each clinic suggests next to its price.
What to expect afterwards
The FDA says most side effects of microneedling happen shortly after a treatment and resolve, and also that some can last a long time. Redness, dryness, peeling, itching and discomfort are on its list of common effects. See the side effects page for the full list and its limits.
What to ask before you book
- Who exactly will treat me, and what is their license?
- What device do you use? (Look it up in the FDA's 510(k) database, product code QAI.)
- What product goes on my scalp, who makes it and what documents can you show?
- How many sessions do you suggest, how far apart, and what is the total cost in writing?
- Have you checked my thinning for medical causes, or should I see a doctor first?
Questions
Is an exosome scalp treatment the same as exosome hair therapy?
In practice, yes. Clinics use both names for a procedure in which the scalp is microneedled and a product containing exosomes is applied. What matters is what is applied, who applies it and what the clinic can show about it.
How many sessions do studies use?
The two microneedling-plus-exosome trials we describe used four sessions over 12 weeks and six sessions over three months. Clinics choose their own schedule, so ask for it in writing.
Is it painful?
The FDA lists discomfort, burning, bleeding and bruising among the effects of microneedling in general. How it feels on your scalp depends on the device, the depth and the person. Ask the clinic what to expect and what they use for comfort.
Sources
This page has not yet been reviewed by a licensed clinician. Sources are listed below. Last editorial check: October 15, 2026.
- FDA, Microneedling Devices, content current as of October 15, 2025. Page checked October 15, 2026.
- FDA, Public Safety Notification on Exosome Products, December 6, 2019. Page checked October 15, 2026.
- Tang et al., narrative review of extracellular vesicles for pattern hair loss, 2026 (PMID 42756864)
- Chen et al., 2026 (PMID 42363148)
- Lee et al., literature review on exosomes in trichology, 2026 (PMID 41561359)