PRP Hair Restoration and Scalp Treatments
Scalp injections and microneedling to support follicle health and hair density.
What is Hair Restoration?
Platelet-rich plasma or fibrin prepared from the patient’s own blood is injected into the scalp, typically as a course of three sessions four to six weeks apart.
Platelet-rich plasma injected into the scalp delivers concentrated growth factors to the follicular environment, supporting follicles that are still active but producing progressively finer hair. That distinction governs who this helps: treatment supports follicles that are struggling, and does considerably less where they are already dormant, which is why starting earlier matters more than treating harder. A course of three sessions spaced four to six weeks apart is standard, with maintenance afterwards. Exosomes can be applied to the same end, and scalp microneedling is generally used alongside PRP or exosomes rather than on its own, to stimulate the scalp and improve absorption of what is applied to it. Hair cycles slowly, so meaningful assessment comes at months rather than weeks.
How does PRP work for hair loss?
Platelets carry the growth factors the body uses to repair tissue and to signal blood vessel formation. Injected into the scalp, that concentrate acts on the follicles and the tissue supplying them, with the aim of prolonging the growing phase of hairs that are still active and improving the condition of the scalp they sit in. The critical word is active. PRP works on follicles that are thinning or miniaturising, not on areas where the follicle is gone — a scalp that has been completely bare for years has nothing left to stimulate. This is why the assessment matters more here than the treatment does, and why an honest consultation may conclude that a surgical option or no treatment is the better answer for a given pattern of loss.
How many sessions does hair restoration need?
A course, spaced weeks apart, followed by maintenance. Hair grows on its own cycle, and a treatment that works by influencing that cycle cannot show its effect faster than the cycle runs — this is slow by nature and nothing shortens it. Reduced shedding is usually noticed before any visible thickening, and it is a genuine early signal rather than a consolation. Visible density change, where it occurs, takes months. Because results depend on continued stimulation, spacing maintenance sessions out indefinitely tends to see gains recede. Photographs at consultation and at intervals are worth more than memory here: gradual change in one’s own hair is remarkably hard to judge by eye, in either direction. Your clinician will set the schedule and review it against those photographs.
Does PRP work for everyone?
No, and any clinic saying otherwise is overselling it. Response depends on the type of hair loss, how long it has been present, how much viable follicle remains, and on general health — thyroid disorders, iron deficiency and other systemic causes will limit what any scalp treatment achieves while they remain unaddressed, which is why they are worth investigating first. Pattern thinning caught relatively early, with follicles still producing fine hair, is where response is best. Scarring types of hair loss, and areas of established complete loss, respond poorly or not at all. PRP is also frequently combined with other approaches rather than used alone. A consultation that examines the scalp and asks about the history of the loss is what determines whether it is worth doing for you.
Medically reviewed by Dr. Sherwin Hariri, MD, Medical Director & Chief Longevity Physician. Last reviewed August 2026.
This page is for information only and is not medical advice. Suitability for any treatment is determined at consultation.
4 treatments in this category
PRP / PRF - Hair Restoration (Scalp)
Platelet-rich plasma injected into the scalp to support hair density. A course of three is standard.
PRP / PRF - Hair Restoration 3-Session Course
A course of three scalp treatments spaced four to six weeks apart.
Exosome Treatment - Scalp / Hair
Exosomes applied to the scalp to support follicle health and hair density.
Scalp Microneedling
Microneedling across the scalp to stimulate the follicular environment and open channels that let topical growth factors reach it, rather than sitting on the surface. Used for hair thinning and shedding, and combined with PRP or exosomes rather than performed on its own.
Common questions
How many PRP sessions do I need for hair?
Three spaced four to six weeks apart is the standard starting course, with maintenance after that. Hair cycles slowly, so judge the result at months rather than weeks.
Does PRP work for everyone?
No. It supports follicles that are still active but producing finer hair, and does much less where follicles are already dormant. This is why early treatment matters, and why an honest assessment at consultation is more useful than an optimistic one.
PRP or exosomes for hair?
Both target the follicular environment. PRP uses your own platelets; exosomes are a topical preparation applied to the scalp. They are sometimes combined, and the choice is made at consultation.
Also consider
PRP
Your own platelets and growth factors, drawn and processed in clinic at the time of treatment.
Learn more →Exosomes
Signalling molecules applied to support regeneration, most often alongside microneedling.
Learn more →Vitamin Injections
Targeted intramuscular shots, each aimed at a specific pathway. No downtime.
Learn more →
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