Microneedling and Exosomes for Hair Loss: How the Combination Works
If you have been researching non-surgical hair loss treatments, you will have seen microneedling named alongside exosome therapy.
It is the part of an exosome hair session that makes the preparation actually useful on your scalp.
Let’s explain what microneedling is, what it does on its own for hair loss (which, unlike exosome therapy, has a more developed evidence base).
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Microneedling uses a medical device to create lots of very small, shallow channels in the skin
On its own, microneedling has meta-analysis-level evidence for improving hair density in pattern hair loss
In exosome hair therapy, microneedling does two jobs at once: it triggers your own scalp's wound-healing response, and it gives the E50 preparation a route down towards the follicles
At Hair Revive we combine microneedling with E50 Exosome and TargetCool, under the oversight of a GMC-registered medical director in a CQC-registered clinic
What Is Microneedling?
Microneedling is a procedure that uses a medical device to create a controlled pattern of very small, shallow channels in the skin. The channels are made by a sterile head fitted with tiny fine needles, typically set to a depth between around 0.5mm and 1.5mm on the scalp.
Each channel is temporary. Your skin closes them up within hours as the tissue heals. While they are open, though, two useful things happen.
First, the process of making them triggers your skin's natural wound-healing response. That releases your own growth factors and supports local blood flow and cellular activity.
Second, any topical preparation applied to the skin has a much easier time travelling past the outer layer than it would otherwise. That matters for exosome therapy, because the E50 preparation needs to reach the hair follicles in the dermal layer rather than sit on the surface.
What Microneedling Does for Hair Loss on Its Own
Microneedling for hair loss is one of the better-evidenced non-surgical options in the UK today. A 2025 systematic review and meta-analysis in Archives of Dermatological Research pulled together twelve randomised controlled trials, covering 631 patients with androgenetic alopecia.
The result was clear: combining microneedling with topical minoxidil produced a significantly greater improvement in hair count than minoxidil on its own. An earlier 2024 meta-analysis in the Journal of Cosmetic Dermatology reached a similar conclusion across a different pool of trials.
Why Microneedling works
On the biology side, each microinjury triggers the wound-healing response: your own platelets release growth factors, small blood vessels open up temporarily, and local cellular activity picks up. In follicles that are still alive but struggling, that activity is part of what keeps them producing hair rather than miniaturising further.
On the practical side, microneedling also lets topicals reach places they otherwise could not. That is why the meta-analysis evidence is strongest for microneedling combined with something else (usually minoxidil) rather than microneedling alone.
The typical protocol that works
The evidence points towards fairly specific parameters. A depth at or below 1mm tends to be the most commonly recommended on the scalp, and a course of sessions over around twelve weeks is where most of the studies report their results. Individual response varies, and the right protocol for you depends on your pattern of loss.
Why We Pair Microneedling With Exosome Therapy
Microneedling and exosome therapy are not the same thing, and neither replaces the other. Pairing them is about stacking two mechanisms that act on the same biological target.
Wound Healing
The microneedling itself activates your scalp's own repair machinery. Your platelets release growth factors. Circulation around the follicles picks up briefly.
The dermal environment shifts towards "repair mode" for a short window.
Enhanced Delivery
The micro-channels give the E50 Exosome preparation a clear route past the outer skin layer. Instead of sitting on the surface, the exosomes can travel down to where the follicles actually live, in the dermal layer.
The E50 preparation's own payload of growth factors, microRNA and cytokines then has a chance to act on the follicles directly.
Microneedling is what makes topical exosome therapy practical. Without the channels, the preparation has little route through intact skin. With them, it has a short, controlled window to reach the follicles before the channels close.
What combining them is trying to achieve
Each treatment targets follicles that are still alive but struggling, and the combined aim is to give those follicles a better chance of staying in the growth phase.
Research on exosome-loaded microneedling specifically is still early but encouraging: a recent clinical study on an exosome regenerative complex delivered with microneedling reported improvements in hair metrics and good tolerability.
How We Do It at Hair Revive Birmingham
We apply E50 topically with microneedling, not by injection. The microneedling itself, and the cooling system we pair with it, are what make the topical route work clinically.
A typical session at our Clinic
AI Scalp Scan
We assess the affected area at a microscopic level with our AI Scalp Scan.
Microneedle the Area
We pass a microneedle across the affected treatment area.
Apply E50-H Exosome
The E50-H Exosome Treatment is topically applied to the prepared area.
Apply TargetCool
TargetCool is applied to make the process more comfortable and support treatment.
A session takes around forty-five minutes to an hour. There is no meaningful downtime.
What we do not do
We do not inject E50. The injection route is in conflict with the MHRA's specific position on exosomes in aesthetic procedures; you can read the detail in our main exosome guide. The microneedling + topical + TargetCool combination is a deliberate clinical and regulatory choice.
We also do not sell microneedling on its own as a standalone hair loss service. The evidence we lean on is for microneedling combined with an active, and in our protocol that active is E50.
What Hair Microneedling Feels Like
Most patients describe the treatment as well tolerated.
There is a definite sensation during microneedling, similar to a gentle scratching or prickling. On the scalp, that sensation is more noticeable at the temples and along the hairline than at the crown, because skin thickness and nerve density vary across the head. The TargetCool cooling significantly reduces sensation in the moments before and during each pass, which is part of why many patients do not need a topical anaesthetic.
Afterwards, mild redness in the treated area is common and typically settles within hours. Small pinpoint bleeding from the needling is possible but usually minimal. Most people return straight to normal activities, with the usual aftercare guidance around avoiding heavy heat, intense exercise and active hair products for the first day.
Is Microneedling for Hair Safe?
Microneedling is a well-established procedure with a good safety profile when performed in a proper medical or clinical setting with sterile single-use needle heads. Across the published hair loss studies, side effects are typically mild, local and short-lived: tenderness, mild redness, occasional small pinpoint bleeding, and transient swelling.
Because the procedure involves breaking the surface of the skin with fine needles, sterility and single-use components matter. Your clinician should be willing to show you what they are using and how it is handled.
You should Avoid Microneedling if:
You're Pregnant or Breastfeeding
You have an active scalp infection or uncontrolled inflammatory skin condition in the treatment area
You have a bleeding disorder, or anticoagulant medication without prior clinical review
You have a known salmon or fish allergy (the E50 preparation is salmon-derived)
There is a keloid scarring tendency in the treatment area
You have certain immune-mediated or oncological conditions where the risk-benefit balance is not right
Your consultation will review your full medical history and flag any reason to delay or avoid treatment.
Is Exosome Hair Restoration Therapy Right For You?
In a world of endless serums, tinctures and procedures it's easy to feel like you're going round in circles.
Exosome Therapy isn't for everybody, and we're upfront about that.
Our 2 Minute Suitability Quiz helps you get a clear picture on whether to proceed with this Treatment or not.
Frequently Asked Questions About Microneedling For Exosomes
Microneedling on its own has evidence for hair loss, particularly when combined with topical minoxidil, per a 2025 meta-analysis of twelve randomised controlled trials. Microneedling combined with an active treatment (such as exosomes or PRP) is what the better-evidenced protocols tend to look like. On its own, without an active, the effect is smaller. We pair microneedling with E50 Exosome and TargetCool for this reason.
We plan the depth of microneedling around your scalp, your pattern of loss and the published evidence, which points towards depths at or below 1mm for the scalp. The specifics are agreed with the clinician at consultation rather than quoted as a single generic figure.
There is a definite sensation during treatment, but most patients describe it as well tolerated. The TargetCool cooling significantly reduces sensation during each pass, and a topical anaesthetic can be used if you would prefer. If pain is a particular concern, raise it at consultation and we will walk through what to expect.
There is no meaningful downtime. Mild scalp redness for a few hours afterwards is common, and occasional pinpoint bleeding during the session usually stops within minutes. You can return to normal activities the same day, with standard aftercare for the first twenty-four hours.
We do not recommend it alongside an active treatment course. Home-use dermarollers are a different category of device from clinical microneedling pens and do not operate at the depth or with the sterility standards of a clinical procedure. Home microneedling can also create infection and scarring risk on an already-active scalp. Your clinical sessions are planned to give the desired biological effect without needing anything additional between them.
In many cases, yes. Your consultation will review any existing medications and plan the combination accordingly. Some combinations are clinically beneficial; others need spacing or adjustment around the session.
Most protocols involve three to six sessions over a period of months, spaced three to six weeks apart, followed by review and, if appropriate, maintenance. The exact number depends on your pattern of loss, how you respond, and your goals.
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Hair Revive at Dr Aesthetica
Unit 1, 1431–1433 Bristol Road South
Birmingham, West Midlands B31 2SU