What happens during a stem cell hair treatment?
Protocols vary between clinics, but a typical autologous (your own cells) treatment follows a similar pattern. Here's what the day usually looks like:
- Check-in and photos. The clinic records your scalp from standard angles so changes can be compared later.
- Numbing. Local anaesthetic is used at the harvest site. Some clinics also offer a mild oral sedative.
- Harvest. Either a small amount of fat is removed through a thin cannula, or a few tiny punches of skin are taken from the back of the scalp.
- Processing. The tissue is spun, filtered, or mechanically broken down to produce a concentrated suspension. This can take 30–90 minutes.
- Scalp numbing. A ring block or nerve block numbs the treatment area.
- Injection. The suspension is injected in a grid pattern across thinning areas, sometimes with PRP or microneedling.
- Discharge. You go home the same day with aftercare instructions.
Exosome treatments skip the harvest and processing steps entirely, so they're often done in under an hour.
How is an exosome session different?
With exosome treatments, nothing is harvested from your body. The clinic thaws or reconstitutes a manufactured vial, cleans the scalp, and either injects the product or applies it immediately after microneedling, which creates tiny channels in the skin. Numbing cream is usually applied 20–40 minutes beforehand. You'll leave with a pink, slightly tender scalp that typically settles within a day or two.
Because the material comes from a manufacturer rather than your own tissue, ask to see the product name, lot number, and the company's documentation. That's normal practice for any injected product, and a clinic should be comfortable sharing it.
How should you prepare?
Your clinic should give you written instructions. Common preparation steps include:
- Stopping blood-thinning supplements such as fish oil, vitamin E, and ginkgo about a week beforehand, if your doctor agrees
- Asking your doctor before pausing any prescribed blood thinner - never stop one on your own
- Avoiding alcohol for 24–48 hours before treatment
- Washing your hair the morning of the procedure and skipping styling products
- Eating a normal meal and staying hydrated
- Wearing a button-up top and arranging a ride if you'll be sedated
- Telling the clinic about any minoxidil or finasteride you use, so they can advise whether to pause topicals
How long is recovery?
Recovery is much shorter than after a hair transplant because no grafts are placed. Most people return to desk work the next day. Expect:
| Timeframe | What's normal | What to do |
|---|---|---|
| Same day | Scalp tightness, mild ache, possible pinpoint bleeding | Rest, keep head raised, avoid touching injection sites |
| Days 1–3 | Swelling that may drift toward the forehead; soreness at a fat harvest site | Gentle hair washing as instructed; wear any compression garment given |
| Days 4–14 | Bruising fades; donor site tenderness settles | Resume exercise when cleared, usually after a few days |
| Months 1–3 | Little visible change; some people notice temporary shedding | Continue any medical therapy your doctor recommends |
| Months 3–6 | The window when clinics say improvement may show, if it occurs | Compare standardized photos with your baseline |
What does the full cost look like?
Stem cell hair treatment pricing isn't standardized, so compare line by line. US quotes commonly land somewhere around $2,000–$10,000+ per treatment, and prices vary by method and region. When you collect quotes, check whether they include:
- The consultation and any blood tests or scalp analysis
- Harvest, processing, and injection fees - sometimes billed separately
- Add-ons such as PRP, microneedling, or exosomes
- Sedation, if offered
- Follow-up visits and progress photos
- Recommended repeat sessions, and what they cost
Insurance won't pay for it. Some clinics offer medical financing, but think carefully before borrowing for an unproven treatment. Our hair restoration financing guide explains how the common plans work.
What results can you realistically expect?
Be prepared for anything from a modest improvement in thickness to no noticeable change. Research is still early, and no stem cell product is FDA-approved for hair loss. What's more predictable is that any benefit won't stop pattern hair loss from progressing. Most doctors who offer these treatments recommend continuing proven therapy such as minoxidil or, for men, finasteride alongside it. For a deeper look at the research, see does stem cell hair restoration work?
How do you track whether it's working?
Hair changes are slow and easy to misjudge in the mirror. Take photos in the same lighting, angle, and hair condition (dry, unstyled) as your baseline, ideally at months 3, 6, and 12. Ask whether the clinic measures density with a trichoscope, which gives a more objective hair count. If you see no meaningful change by six months, discuss other options rather than committing to more sessions.
Should you book a repeat treatment?
Some clinics recommend a second or third session within a year, or a yearly "top-up". Before agreeing, look honestly at your six-month photos. If there's clear improvement you value, a repeat may be reasonable - but ask what evidence supports the interval they suggest. If there's little or no change, more sessions of the same treatment are unlikely to change the outcome, and the money may be better spent on PRP, medical therapy, or a surgical option. Avoid prepaying for multiple sessions before you know how you respond.
When should you call the clinic?
Contact your provider promptly if you notice spreading redness, warmth, or pus at any injection or harvest site, fever, pain that worsens after the first few days, or lumps under the scalp. These are uncommon but need checking. For how to handle complications more broadly, see our guide to common problems.
What's the best next step?
Before booking, get a proper hair-loss diagnosis and a second opinion from a board-certified dermatologist or hair restoration surgeon who isn't selling only one treatment. If you'd rather compare established options such as PRP or a transplant at the same time, request a free quote and we'll match you with vetted US providers.
Related guides
Frequently asked
Usually yes, gently, after 24 hours - but follow your clinic's instructions. Avoid scrubbing injection sites, hot water, and harsh products for the first few days.
Most clinics advise avoiding heavy exercise and heavy sweating for 48–72 hours. If fat was harvested, you may need to wait closer to a week, depending on bruising and your doctor's advice.
Generally no. Injections are placed between existing hairs, and scalp micrografts use only a few tiny punches that are hidden by surrounding hair. Fat harvesting takes place away from the scalp entirely.
Some people report temporary shedding in the weeks after scalp injections, similar to what can happen after PRP. It typically settles, but mention it to your provider if it persists.
Many clinics ask you to pause topical minoxidil for a few days before and after scalp injections to reduce irritation. Don't stop finasteride without speaking to your prescribing doctor.
Harvest-based treatments usually take two to four hours including processing. Exosome treatments with microneedling are often completed in under an hour. Allow extra time for check-in and aftercare instructions.
About this guide
This is an independent overview to help you decide. Figures are typical US ranges, not a quote, and general information is not medical advice - confirm details at a consultation. See our methodology and disclosure.
