How PRP and Exosome Hair Loss Sessions Differ
What happens during a PRP session compared to an exosome session?
The two appointments split apart for about fifteen minutes and then run identically to the end. Everything you'll actually watch, the cleaning, the numbing, the grid of injections, is the same in both rooms, so the difference you're really choosing between isn't the experience, it's what's in the syringe and where it came from.
| What happens | Platelet-rich plasma | Exosomes |
|---|---|---|
| Source of material | Your own blood, drawn in the room | Manufactured vial from an outside supplier |
| Preparation step | 10 to 60 mL draw, then a 5 to 15 minute spin | Thaw or reconstitute at the bench, under 10 minutes |
| Numbing wait | 20 to 30 minutes, overlapping the spin | 20 to 30 minutes, with nothing to hide it behind |
| Delivery | Injection grid about 1 cm apart, microneedling, or both | Same grid, same microneedling |
| Total chair time | 60 to 90 minutes | 30 to 60 minutes |
A platelet session runs about 60 to 90 minutes and an exosome session about 30 to 60 minutes, with nearly the whole gap explained by the blood draw and the centrifuge spin.
What does the blood draw and processing step involve in a PRP appointment?
Everything in this stage happens in front of you, on the same bench, which is the whole point of an autologous preparation. You'll watch your own blood come out of your arm, separate into visible layers, and go back into your scalp within the hour.
- Draw: A standard venipuncture at the inner elbow collects 10 to 60 mL into anticoagulant tubes so the sample can't clot.
- Spin: Balanced tubes run at roughly 1,500 to 3,000 rpm for five to fifteen minutes, separating red cells, buffy coat and plasma.
- Optional second spin: A faster second run concentrates the platelets further into a smaller, richer volume.
- Extraction: The practitioner pulls off the plasma and buffy coat with a syringe or extraction port, leaving the red cells behind.
Typical platelet-rich plasma preparations land between three and six times baseline platelet concentration, and the draw plus spin add roughly twenty to thirty minutes to the appointment.
How is an exosome product prepared for use when there is no blood draw?
Nothing here comes from you, and that one fact is why the step takes minutes instead of half an hour. The trade is speed for traceability: you're now trusting a manufacturer's paperwork instead of your own vein.
- Origin: Cultured mesenchymal stem cells from umbilical cord, placental or adipose tissue.
- Storage: Held frozen at minus 20 or minus 80 degrees Celsius until the day of your appointment.
- Bench prep: Thaw a suspension or reconstitute a freeze-dried vial, swirl gently, draw into syringes, five to ten minutes.
- Paperwork: Lot number and certificate of analysis showing particle count, protein content and sterility testing.
There is no standardised potency unit for exosome products, so variability in how they're isolated and characterised is itself a barrier to reproducibility between commercial preparations.
How do the scalp preparation and numbing steps differ between the two treatments?
Most people expect the newer treatment to involve something visibly different here, and it doesn't. The scalp gets parted, cleaned with an antiseptic and photographed either way, then a compounded topical anaesthetic sits under occlusion for twenty to thirty minutes while you wait.
| Prep step | Platelet-rich plasma | Exosomes |
|---|---|---|
| Cleaning and sectioning | Antiseptic, hair parted, baseline photo | Identical |
| Topical anaesthetic | 20 to 30 minutes under occlusion | 20 to 30 minutes under occlusion |
| Numbing has to hold for | A longer delivery phase, larger volume, more points | A shorter delivery phase, smaller volume |
| Where the wait sits | Overlaps the spin, so it costs no extra time | Exposed, often the longest block of the visit |
The numbing wait is twenty to thirty minutes in both treatments, but only the platelet appointment hides it behind the centrifuge spin.
What delivery methods are used to get each product into the scalp?
This is the part you actually watch, and the technique belongs to the scalp rather than to either product. Neither material has a delivery route unique to it, which is worth remembering when a session is sold as though the method itself were the innovation.
- Injection grid: Shallow points 0.5 to 1 cm apart at 1.5 to 2.5 mm depth, aiming for the follicular bulbs.
- Grid size: A full crown and hairline can run fifty or more points over ten to twenty minutes.
- Microneedling: A pen or roller opens channels, then the material goes on topically and gets massaged in.
- Combined approach: Many clinics inject the deeper field and microneedle across the surface so nothing is wasted.
A platelet preparation typically yields three to eight millilitres to distribute while a reconstituted exosome dose is often two to five, which is the only real delivery difference between them.
How long does each appointment take from arrival to walking out?
Budget ninety minutes for a platelet session and an hour for an exosome session and you'll rarely be caught out. A big share of both visits isn't treatment at all, it's sitting there waiting for anaesthetic to work.
First appointments run fifteen to twenty minutes longer than follow-ups, and the practical time saving on an exosome session is usually about thirty minutes rather than the forty-five the step list suggests.
What does each treatment feel like during the session and in the hours afterward?
Numbing takes the edge off rather than removing the sensation, so expect firm pressure with an intermittent sting, sharpest at the hairline and temples. The soreness that follows is the needles talking, not the product, which is why both treatments feel much the same in the chair.
Reach for paracetamol and a cool compress held away from the injection sites, because non-steroidal anti-inflammatories are generally discouraged around a platelet treatment on the reasoning that they blunt the inflammatory signalling the treatment relies on.
What aftercare instructions follow each type of session?
Your aftercare sheet is dictated by the needles, not by what went into the syringe, so the two treatments hand you nearly the same list. The timeline is what matters: each window exists because the channels in your scalp are still open.
Oral treatments such as finasteride carry on uninterrupted through both types of session, while topical minoxidil pauses for roughly twenty-four hours.
How many sessions are typically scheduled and how far apart?
This is where the two treatments genuinely part company, and it happens on the calendar rather than in the room. Nothing useful can be judged early either way, because hair grows on its own clock and your memory of how it looked in March isn't evidence.
- Months one to three: A platelet course is conventionally about three sessions at roughly monthly intervals.
- Month three: The first honest assessment point, measured against standardised baseline photographs rather than impression.
- Month six: A fair assessment point, since seasonal shedding fluctuates and early reads mislead.
- Ongoing: Maintenance every three to six months, adjusted on a hair pull test, the density seen at review, or your response after the first two sessions.
Compare the cost of the first twelve months rather than the price of one appointment, since a treatment priced high per session but needing two visits a year can cost less annually than a cheaper one needing five.
What regulatory and sourcing differences shape what happens in the treatment room?
The paperwork explains the choreography. Platelet-rich plasma is your own blood, removed and returned during the same procedure, which is the exception in the federal human tissue rules that lets it be prepared at the chair, while an exosome vial arrives with a whole supply chain behind it.
- What's regulated in a platelet session: The equipment, not the plasma, since the centrifuge systems and collection kits are cleared devices.
- Approval status of exosomes: No exosome product is approved by the United States Food and Drug Administration for hair restoration or any other clinical indication.
- Safety notifications: The agency has issued public warnings about unapproved products marketed in this space, including reports of serious adverse events.
- What to ask for: The supplier, the lot number, a certificate of analysis, and the storage and thaw record for your specific vial.
Ask three direct questions before consenting to an exosome treatment: where the product came from, what its approval status is for this use, and what the clinic does if there's a reaction.
