PRP for Hair Loss in London: The Doctor-Led Guide

PRP uses your own blood to stimulate the hair follicle, and the evidence for it in early to moderate hair loss has grown steadily, with recent meta-analyses of randomised controlled trials reporting increased hair density after a proper course. It is not magic and it is not for everyone, which is the honest starting point, because PRP thickens and holds hair where the follicle is still alive and does very little where the follicle is already gone. That single fact, follicle survival, is what decides whether PRP will work for you, and it is why a treatment should never be booked before the cause of your loss has been assessed. At The Wellness London the pathway begins with finding out what is driving your thinning, and the first step is our free Hair Health Check.

Medically reviewed by a GMC-registered doctor at The Wellness London. Last updated August 2026.

Start with the free Hair Health Check. A doctor reviews your answers and emails you a personalised summary, including whether PRP is likely to suit you. Take the Hair Health Check: https://www.thewellnesslondon.com/forms/hair-health-check

At a glance ‍

PRP, or platelet-rich plasma, is made from a small sample of your own blood, spun to concentrate the platelets and the growth factors they carry, then injected into the thinning areas of the scalp. It works best on early to moderate thinning where follicles are miniaturising rather than lost, is usually given as a course of around three sessions spaced four to six weeks apart followed by maintenance, and has a low risk profile because it uses your own blood. Results build over months, not weeks. The most common reason a course disappoints is that an underlying cause, such as low iron or a thyroid problem, was never tested, which is why diagnosis comes first here.

What is PRP?

Platelet-rich plasma is a concentrate made from your own blood. A small draw is taken, much like a routine blood test, and spun in a centrifuge to separate and concentrate the platelets. Platelets are best known for clotting, but they also carry a large number of growth factors, the signalling molecules the body uses to trigger repair and regeneration. Concentrated and returned to the scalp, they prompt activity around the follicle.

Because the material comes from you, there is no risk of allergy or rejection, which is part of why PRP has such a favourable safety record. The quality of the preparation matters, however, since a weak concentrate delivers a weak signal, which is one of the differences between clinics that a patient rarely sees but that shows up in the result.

How PRP works for hair

Hair follicles in pattern loss do not die suddenly. They shrink over successive cycles, producing finer and shorter hairs, spending less time in the growth phase, until eventually they stop. PRP works by delivering concentrated growth factors to these struggling but living follicles, supporting blood supply and prolonging the growth phase, which shows up as reduced shedding first and then gradual thickening of the hair that is there.

This is also why timing is everything. A follicle that is miniaturising can be supported, while a follicle that has already been lost cannot be signalled back into existence. PRP is a treatment for hair you still have, to keep and thicken it, far more than a treatment for hair you have already lost.

What the evidence shows

The research base for PRP in androgenetic hair loss has strengthened over the last several years, and recent systematic reviews and meta-analyses of randomised controlled trials report improvements in hair density with a course of treatment. The honest reading of that evidence is that PRP helps a majority of suitable patients with early to moderate loss, that results vary between individuals, and that it is not a cure for genetic hair loss, which continues underneath and needs ongoing management.

Good clinics say this plainly rather than promising regrowth from a bald scalp, because setting a realistic expectation is what makes a course worth doing. Where the evidence is weakest is exactly where the marketing is often loudest, in advanced loss, and that is the gap an honest assessment closes before you spend anything.

Want to know if PRP suits your hair? The Hair Health Check gives you a doctor-reviewed answer. Start it here: https://www.thewellnesslondon.com/forms/hair-health-check‍ ‍

Who is the ideal candidate?

The strongest candidates have early to moderate thinning with follicles that are miniaturising rather than long gone, are willing to complete a full course rather than judge it after one session, and are prepared to correct any deficiency found on testing. PRP achieves most before significant miniaturisation sets in, so acting early gets more back.

Where loss is advanced and the scalp is truly bald in places, PRP can protect and thicken the surrounding hair but will not regrow the bald zone, and the honest route there may be a transplant, sometimes with PRP alongside to protect the native hair. Where a medical driver such as iron deficiency or a thyroid problem is found, correcting it can itself recover a good deal of density, and occasionally that alone is enough.

What to expect across the pathway‍ ‍

The pathway runs in clear stages. It begins with the Hair Health Check and a doctor-led assessment of the cause, including blood tests where indicated. Any treatable driver is addressed, a prescription such as minoxidil or finasteride is considered where appropriate, and then a PRP course is delivered, usually around three sessions four to six weeks apart, with a review to confirm the plan is working before maintenance.‍ ‍

Each session takes roughly forty-five to sixty minutes. After a small blood draw and preparation, the scalp is numbed and the concentrate is delivered across the thinning areas. Downtime is minimal, with mild tenderness and occasional pinpoint bruising the usual after-effects, and most people return to normal activities the same day.

When will I see results?

Hair works on a slow cycle, so PRP results build over months. Most people notice reduced shedding first, within the first month or two, then gradual thickening and improved density from around three months, with the fuller picture at six months as treated follicles move through the growth cycle. Because the cycle is long, completing the course and giving it time matter more than with any skin treatment, and stopping early is the most common self-inflicted reason a course underperforms.

A review a few weeks in is there to confirm the plan is on track and to identify the minority who do not respond, so time and money are not spent on a route that will not deliver and an alternative can be discussed instead.

How PRP compares with other options‍ ‍

PRP is best understood as one part of a plan rather than a standalone answer. Prescription minoxidil and finasteride work pharmacologically and complement PRP well, holding the follicle while PRP stimulates it. Exosomes offer an additional signalling boost where more is needed. A hair transplant relocates follicles and is the route for established loss that regenerative treatment cannot reverse, and surgeons routinely pair it with PRP to protect the surrounding hair.‍ ‍

These are complementary, not competing, and the best plan usually combines correcting the bloods, holding the follicle with prescription therapy where appropriate, and stimulating with PRP. The point of a doctor-led assessment is to tell you honestly where you sit on that spectrum rather than selling a single treatment to everyone.

What are the risks? ‍

Because PRP uses your own platelets, its risk profile is low. The usual effects are mild scalp tenderness, short-lived redness and the occasional pinpoint bruise, and serious complications are uncommon in doctor-led hands. The more consequential practical risk is not harm but waste, a course that achieves little because an underlying cause was never tested, the concentrate was too weak, or the follicles were already too far gone. Diagnosis first, a proper preparation and an honest expectation are what reduce that risk.

Your next step

PRP is a genuinely useful treatment for the right person at the right time, and a poor use of money for the wrong one, and the difference is decided before the first injection by whether anyone assessed the cause. That is what our free Hair Health Check is for. It is quick, it is reviewed by a GMC-registered doctor, and it tells you whether PRP is likely to suit you before you commit to anything.

Take the free Hair Health Check now: https://www.thewellnesslondon.com/forms/hair-health-check

Frequently asked questions about PRP for hair

Does PRP actually work for hair loss?

For early to moderate thinning where the follicle survives, the evidence from randomised controlled trials supports improved hair density with a proper course, and most suitable patients benefit. It does not regrow a truly bald scalp and results vary between individuals.

How many PRP sessions will I need?

Usually a course of around three sessions spaced four to six weeks apart, followed by maintenance. The exact number depends on severity, and a review confirms the plan is working before continuing.

Is PRP painful, and is there downtime?

The scalp is numbed first, so discomfort is limited, and downtime is minimal. Mild tenderness, short-lived redness and occasional pinpoint bruising are the usual after-effects, and most people return to normal activities the same day.

When will I see PRP results?

Reduced shedding often comes first within a month or two, with thickening from around three months and the fuller picture by six months, because hair grows on a slow cycle. Completing the course matters.

Do I need tests before PRP?

Yes, because deficiencies such as low iron and conditions such as thyroid problems produce the same thinning and are common. Treating the follicle while missing the cause is the most common reason a course disappoints, which is why assessment comes first.

This article is for information and does not replace personal medical advice. PRP manages and thickens hair loss where the follicle survives and is not a permanent cure for genetic hair loss, and results vary between individuals. All treatments at The Wellness London are performed by GMC-registered doctors. Reviewed by a GMC-registered doctor at The Wellness London. Last updated August 2026.

References. Recent systematic reviews and meta-analyses of randomised controlled trials on platelet-rich plasma and hair density. Published literature on androgenetic alopecia and follicle miniaturisation. Published literature on iron, ferritin and thyroid function in diffuse hair loss.

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