Two ways to get to the same goal, by completely different routes — and with very different depths of published evidence behind them. We offer both, which means we can afford to tell you the unflattering parts.
People arrive at this question from two directions. Some are worried about losing hair. Many more simply want more of it — more volume, more density, hair that holds a style the way it did a few years ago. Both are good reasons to be here, and the comparison below matters either way.
Most comparisons of these two treatments are written by practices that only offer one of them. That tends to show. A clinic with a laser explains why needles are unnecessary; a clinic with a centrifuge explains why topicals cannot reach the follicle.
We offer both, so the more useful thing we can do is lay out how they differ and be direct about where the evidence is strong and where it is thin.
PRP — platelet-rich plasma — starts with a blood draw. The sample is spun in a centrifuge to concentrate the platelet fraction, and that concentrate is injected into the scalp. The material is your own, and it is placed at the depth of the follicle by needle.
KeraLase approaches it from the other direction. Nothing is injected. A fractional laser creates narrow channels in the surface of the scalp, and a peptide serum — KeraFactor — is applied into those channels while they are open. The laser solves a delivery problem rather than acting as the treatment itself.
That distinction drives almost every practical difference between them.
| KeraLase | PRP | |
|---|---|---|
| Active material | Biomimetic peptides and skin proteins in a nanoliposome carrier | Growth factors from your own concentrated platelets |
| Source | Manufactured serum | Autologous — drawn from you that day |
| Route | Laser-created channels in the scalp surface | Injection into the scalp |
| Blood draw | No | Yes |
| Typical comfort | Warmth; generally well tolerated | Less comfortable even with numbing |
| Regulatory status | FDA-cleared device; serum regulated as a cosmetic | Autologous blood product; not an FDA-approved drug for hair loss |
| Published evidence | Largely manufacturer-reported | Multiple randomized trials and meta-analyses |
This is the part usually skipped, and it is the part that should carry the most weight.
PRP has the deeper literature. A 2025 systematic review and meta-analysis pooled 43 randomized controlled trials covering 1,877 participants and found that activated PRP increased hair density compared with placebo. Earlier meta-analyses reached broadly similar conclusions on density, while being more equivocal about hair count and shaft diameter once compared against placebo rather than against baseline. 2025 systematic review and meta-analysis, randomized controlled trial meta-analysis
That is a real evidence base. It is not unanimous — PRP preparation methods vary widely between clinics, which is one reason results vary between them — but the question has been studied repeatedly in randomized trials.
KeraLase has not been studied to that depth. The efficacy figures circulating on clinic websites trace back to manufacturer material rather than to independent randomized trials, and the absorption advantage attributed to the 1927nm channels is likewise a manufacturer-reported measurement. Manufacturer procedure information
None of that means KeraLase does not help people. The delivery mechanism is plausible and the treatment is well tolerated. It does mean that anyone presenting it as the better-proven of the two is reversing the actual state of the literature, and you are entitled to know that before you choose.
A note on how these get marketed. Both treatments are frequently sold as packages of six sessions. A package is a billing structure, not a clinical finding. The number of sessions that suits you comes out of your assessment.
People after more volume and density rather than a rescue, people who will not tolerate needles or a blood draw, and people layering an in-office treatment onto care they already use.
People who want the option with the larger body of trial evidence behind it, and who are comfortable with a blood draw and scalp injections to get it.
When the change is driven by thyroid disease, iron deficiency, a medication, a recent illness, or a scarring process. Those need the cause addressed. A device applied over an untreated medical cause disappoints reliably.
That last card is the one we would most like people to read twice. It applies to a minority of people — but the most common reason a hair treatment fails is not that the wrong device was chosen. It is that nobody established what was going on in the first place.
Both treatments are prescribed off the back of an assessment rather than picked from a menu. That means 3DS Hair Analysis for a measurable baseline of follicle density and scalp condition, a TrichoTest genetic panel where it is informative, and a physician review of history and pattern to exclude the medical causes above.
The measured baseline matters more than it sounds. Hair changes slowly, and without imaging from day one you end up comparing this month's hair against your memory of last year's — which is not a comparison anyone wins.
Neither is better in the abstract. PRP has the larger body of randomized controlled trial evidence in pattern hair loss. KeraLase is needle-free and generally more comfortable, and it can be layered onto existing care more easily. Which is appropriate depends on what is causing your hair loss, which is why the diagnosis comes before the choice.
KeraLase, for most people. It involves no blood draw and no scalp injections — the laser pass is usually described as warmth. PRP involves drawing blood and then injecting the concentrate into the scalp, which is uncomfortable for most people even with numbing.
They are not mutually exclusive, and combining regenerative approaches is common in hair restoration. Whether it makes sense for you depends on your diagnosis, your scalp, and what you are already doing. It is a decision for your assessment rather than a standing recommendation.
Often not, and this is the part most worth understanding. Thinning from thyroid disease, iron deficiency, a recent illness, a medication, or a scarring process needs that cause addressed. An in-office scalp treatment applied over an untreated medical cause tends to disappoint.
Hair grows on its own schedule and neither treatment is fast. Change is assessed over months rather than weeks, which is the argument for taking measured imaging at baseline — otherwise you are comparing todays hair against a memory.
Not automatically. Those are FDA-approved drug therapies for pattern hair loss with their own evidence base. In-office treatments are often used alongside them rather than instead of them. What is right for you is a medical decision, not a menu choice.
A consultation in Houston Heights establishes the cause first and the treatment second. If the answer is neither of these, that is what you will be told.
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