Microneedling for Hair Loss: Does It Work, and How It Compares
Last reviewed on 29 July 2026. We review our treatment guides every six months to keep them accurate.
If you are wondering whether microneedling works for hair loss, the honest answer is that it may help, but mainly as an add-on to a proven treatment rather than a cure on its own. Microneedling, sometimes written as micro needling and also called skin needling or collagen induction therapy, is a technique that uses a device covered in fine needles to make tiny, controlled punctures in the scalp. The idea is that this minor, deliberate injury prompts the skin to repair itself, and that the repair response may nudge nearby hair follicles towards more active growth.
The strongest evidence sits with one specific use: microneedling combined with topical minoxidil for male pattern hair loss. Used entirely on its own, the evidence is much weaker. This overview explains what microneedling is, the different devices people use (from a home derma roller to a derma pen or in-clinic microneedling), what the research actually shows, who it might suit, and how to use it safely. For the main study, see the 2013 randomised trial, and for an independent overview of the technique, DermNet's page on skin needling. For the home derma roller in detail, including how to use one, which needle length to choose and how often to roll, see our separate guide to using a derma roller for hair loss. You may also find our guides to microneedling for beard growth and minoxidil for hair loss useful. Anything involving a medicine such as minoxidil is best discussed with a doctor or pharmacist who can advise on your own situation.
What is microneedling?
Microneedling is a minimally invasive technique that was first used to soften scars and ageing skin, and has since been studied for hair loss. A device fitted with very fine needles is moved across the scalp so that each needle makes a tiny channel in the skin, far too small to see. As DermNet explains, on healthy skin these microchannels close over within about ten minutes, so the skin barrier is only briefly interrupted. The needles set off a controlled wound-healing response: DermNet describes how the tiny injuries release growth factors and lead to the gradual formation of new collagen, elastin and small blood vessels as the skin repairs itself.
The scalp trial this topic leans on adds a follicle-level rationale, suggesting the micro-injury may release platelet-derived and epidermal growth factors, activate stem cells in the hair follicle and switch on hair-growth signals such as Wnt and vascular endothelial growth factor. It is worth being clear that much of that mechanism comes from laboratory and animal work rather than from people, so it is the reason researchers started testing microneedling, not proof that it regrows hair.
The different microneedling devices
Microneedling is one idea delivered by several different tools, and the device matters for both depth and risk.
Derma roller: a handheld roller studded with fine needles that you roll over the scalp. This is the most common home device. For a full how-to, see our derma roller for hair loss guide.
Derma stamp: pressed straight down onto the skin rather than rolled, which many people find easier around a hairline or crown and less likely to tug on existing hair.
Derma pen (electric or motorised microneedling): a powered pen that drives short needles up and down rapidly. Sometimes searched as dermapen hair regrowth, it does the same basic job as a roller but with adjustable, motorised needle depth.
Professional and radiofrequency (RF) microneedling: carried out in a clinic by a trained practitioner, usually with a numbing cream and longer or motorised needles, and sometimes combined with radiofrequency energy. These reach deeper than home devices and carry more risk, which is why they are best left to a professional.
DermNet notes that skin needling devices can carry needles up to 3mm but typically use around 0.5mm to keep bleeding to a minimum, while short home rollers are around 0.2mm. In other words, the deeper the needle, the more this becomes a clinical rather than a home treatment.
Does microneedling work for hair loss? What the evidence shows
Graded honestly, the strongest evidence is for microneedling combined with minoxidil, not microneedling used alone. The study people point to most is a 2013 randomised trial in 100 men with mild to moderate male pattern hair loss. For 12 weeks, one group used a 1.5mm derma roller once a week alongside twice-daily 5% minoxidil, while the other group used the minoxidil on its own. The group who added microneedling gained far more hair, a mean increase of about 91 hairs per square centimetre against about 22 for minoxidil alone, and far more of them rated their improvement as meaningful (around 82% reported more than 50% improvement, versus about 4.5% on minoxidil alone).
That is genuinely encouraging, but it needs reading carefully. It tested microneedling combined with minoxidil against minoxidil alone, so it shows the combination beat the drug on its own rather than proving what microneedling does by itself. It was a small, single 12-week pilot using a 1.5mm needle applied by clinicians in a medical setting, and the authors were candid that the right needle size, frequency and duration of treatment were still to be established. So does scalp microneedling work, and can microneedling regrow hair? On its own the evidence is limited; as an add-on to minoxidil for pattern hair loss it looks promising, but it is best seen as a helper, not a cure. Anyone promising guaranteed regrowth from microneedling alone is going beyond what the research supports.
Does microneedling work for male pattern baldness?
The clearest evidence is specifically in male pattern hair loss, also called androgenetic alopecia, which is what the 2013 trial studied, and there it worked best paired with minoxidil. Microneedling is not a cure for pattern baldness and it cannot bring back follicles that are already gone, so it tends to be most useful for earlier thinning rather than advanced baldness. If your hair loss is sudden, patchy, or you are not sure of the cause, it is worth seeing a doctor or dermatologist before trying microneedling, because the right treatment depends on the diagnosis.
Home microneedling versus professional treatment
Both home and professional microneedling exist, and they are not the same thing. Home devices such as a derma roller or a short derma pen use shorter needles, often around 0.2mm to 0.5mm, and are gentler and lower risk. The good scalp evidence, though, used a 1.5mm roller applied by clinicians, not a home device. Longer needles reach deeper, are more painful and carry a higher risk of bleeding and injury, so anything beyond a short home needle is really a professional treatment. A trained practitioner can also keep everything sterile and judge the right depth for you. If you are considering deeper or radiofrequency microneedling, or you have a scalp or skin condition, it is sensible to speak to a dermatologist rather than treating yourself at home.
Using microneedling safely
Whether at home or in a clinic, microneedling briefly breaks the skin, so hygiene and caution matter. The points below are general guidance rather than scalp-specific rules, because good scalp-specific rules do not really exist yet.
Keep everything clean: a dirty or shared device is the main way microneedling causes infection. DermNet notes skin needling can spread bacterial or cold-sore (herpes simplex) infection, so a home device should only ever be used by one person and disinfected before and after use.
Do not needle broken or inflamed skin: avoid active infection, cold sores, inflamed or broken skin, and flares of a skin condition such as psoriasis or eczema.
Work gently: aim for mild pinkness rather than bleeding, and use a good-quality device, as DermNet warns that poor instruments can shed or break needles in the skin.
Take extra care, and get advice first, if you have a bleeding or clotting disorder, take blood-thinning medication, or have diabetes or a weakened immune system.
Do not apply minoxidil straight after microneedling: see the timing note below.
Microneedling and minoxidil: do not apply it straight after
Because the strongest evidence is for the combination, many people pair microneedling with topical minoxidil, but timing matters. In the 2013 study, patients were told not to apply minoxidil on the day of the procedure and to wait around 24 hours before resuming it. The reason is straightforward: microneedling briefly breaks the skin barrier, and the minoxidil product information says it should not be applied to inflamed, infected, irritated or broken skin, warning that reduced integrity of the skin barrier could, at least in theory, increase how much is absorbed into the body. Applying minoxidil onto freshly needled skin also tends to sting. A sensible approach is therefore to microneedle and apply minoxidil at different times, leaving roughly 24 hours after a session. Minoxidil is a medicine with possible side effects and is licensed for male pattern hair loss, so speak to a doctor or pharmacist before starting it rather than beginning on your own.
How long before you see results?
Patience is essential, because hair grows slowly. Even in the scalp study, new growth was not really noticeable until around six weeks in, and that was with minoxidil used alongside. A realistic approach is to give it at least three months, and often longer, of consistent use before judging whether it is helping, taking honest before-and-after photos in the same light so you can compare fairly. It is also reasonable to accept that it may not work for you, and to stop if you see nothing after several months.
Frequently asked questions
Does microneedling work for hair loss?
It can help, but mainly as an add-on to a proven treatment rather than on its own. The research people cite most tested microneedling together with minoxidil for male pattern hair loss and found the combination clearly beat minoxidil alone. Used entirely by itself, the evidence is limited, so microneedling is best thought of as a helper for a proven treatment rather than a standalone cure.
Can microneedling regrow hair on its own?
The evidence for microneedling used entirely on its own is weak. It cannot restore follicles that are already gone, so it is most likely to help with earlier thinning, and even then it works best alongside a treatment such as minoxidil. Speak to a doctor or dermatologist about the right approach for your type of hair loss.
Is professional microneedling better than a home derma roller?
Not necessarily better, but different. Home devices use shorter, lower-risk needles and are convenient, while professional treatment uses deeper or motorised needles under sterile conditions and suits anyone who wants more than a short home needle can safely deliver. The well-known scalp study used a 1.5mm roller applied by clinicians, not a home device. If in doubt, or if you have a scalp condition, see a dermatologist.
Can I use minoxidil straight after microneedling?
It is generally better not to. In the study most people cite, minoxidil was not applied on the day of needling and was resumed only about 24 hours later, and the minoxidil product information warns against applying it to broken or irritated skin. Leaving roughly a day between microneedling and minoxidil is a sensible, cautious approach. Ask a doctor or pharmacist for advice on your own routine.
Is scalp microneedling painful?
With the short needles used at home (around 0.5mm or less) most people find it uncomfortable rather than painful. Longer needles are more painful and carry more risk, which is one reason they are better left to a professional, who can use a numbing cream. If a home session is genuinely painful or causes bleeding, you are likely pressing too hard or using too long a needle.
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