Microneedling For Hair Loss: What's The Best Needle Size? (2024)

Microneedling: a powerful, under-researched hair loss therapy

In the last five years, microneedling therapies have exploded in popularity – especially among hair loss sufferers.

Research now shows that microneedling can increase hair counts by 15%. And as clinical evidence for microneedling continues to grow, so do the devices available to consumers: microneedle rollers, microneedle stamps, and even automated needling devices – with needle lengths ranging from 0.25mm to 2.5mm (and higher).

But with microneedling research still in its infancy, there’s one big question that researchers have yet to answer:

When it comes to treating pattern hair loss, what’s the best microneedling needle length? 0.25mm? 0.5mm? 1.0mm? 1.5mm? 2.0mm? Higher?

Despite what microneedling manufacturers tell you, there is no clear-cut answer.

Rather, the evidence indicates that when it comes to treating pattern hair loss, the right microneedling needle length is highly contextual. It depends on (1) how frequently you plan on microneedling and (2) whether you’re combining microneedling with other treatments.

This article dives into the research to uncover the evidence, and how to best position yourself for hair regrowth if you decide to start microneedling.

What is microneedling?

Microneedling is a stimulation-based therapy for hair loss. Similar to platelet-rich plasma therapy and massaging, microneedling leverages acute wounding in balding scalp skin (via medical-grade needles) to evoke growth factors. Over time, these growth factors may help to (1) promote the formation of new blood vessels, (2) reduce the appearance of scar tissue, and (3) promote hair follicle proliferation.

Yes, the therapy hurts. And yes, microneedlers look like small medieval torture devices.

A microneedle roller used for hair loss

Microneedling For Hair Loss: What's The Best Needle Size? (1)

But despite the pain involved in therapy, microneedling – when repeated once or twice-weekly, and for 3-6 months – have been shown to greatly improve hair growth in men with androgenic alopecia (AGA).[1]https://link.springer.com/article/10.1007/s13555-021-00653-2

Just see the results of this 2017 study, which demonstrated hair count improvements of ~15% for those using microneedling devices without any other treatments.

Microneedling for AGA: results over six months (bi-weekly sessions)

Microneedling For Hair Loss: What's The Best Needle Size? (2)

Or the results of this 2013 study, which found that microneedling enhanced the regrowth achieved from 5% minoxidil by 400%.

Microneedling + 5% minoxidil for AGA: results over three months (weekly sessions)

Microneedling For Hair Loss: What's The Best Needle Size? (3)

In short: microneedling iseffective at improving pattern hair loss (AGA) in men. But questions still remain as to its best practices. Questions like:

  • How far apart should we space our sessions? Daily? Weekly? Monthly?
  • How long should our sessions be?Five minutes? Ten? Twenty?
  • What’s the best needle count? 192 needles? 540 needles? More?
  • What’s the best needle length? 0.25 mm? 1.0 mm? 2.0 mm? More?

…and many more.

The truth is that it’s impossible to answer any one of these questions without answering the others. After all, these questions are all interlinked. The smaller the needle length, the quicker your healing, the more frequently you can microneedle. And the higher your number of needles, the more inflammation you can evoke, and the shorter your sessions can be.

Having said that, the best needle length debate might be answerable by itself. Why? Because at different needle lengths, microneedling has different effects.

Here’s why.

Microneedling needle lengths: different puncture depths, different effects on the hair follicles

Our scalp skin consists of three main layers: the epidermis, dermis, and hypodermis (i.e., subcutaneous layer).

Microneedling For Hair Loss: What's The Best Needle Size? (4)

The thickness of our scalp (and its subcomponents) is influenced by our age, gender, and degree of balding. But in general, our scalp skin is just 5mm to 6mm thick.

Within that skin, our epidermis is usually less than 0.5mm thick, our dermis is 1-2mm thick, and our subcutaneous layer is 3mm thick.

This has significant relevance to microneedling needle lengths. Why? Because the depths at which these needles puncture our scalps has a direct influence over which regions of the hair follicles we will stimulate.

Needle lengths of 0.25 mm to 0.5 mm may improve topical absorption

At shorter needle depths (i.e., 0.25mm to 0.5mm), microneedling only wounds the top layers of the skin (the epidermis). This will improve the absorption of topicals (i.e., minoxidil). However, these shallower depths likely won’t evoke the growth factors necessary to encourage hair follicle proliferation. For this effect to occur, we need to incur wounds deeper – specifically, we need to wound the dermis.

Needle lengths of 1.5 mm to 2.5 mm may evoke growth factors for hair follicle proliferation

At longer needle depths (i.e., 1.5mm to 2.5mm), microneedling needles will puncture the dermis of our scalp skin. This has important ramifications to hair follicle proliferation, because the dermis is where the hair follicle stem cell bulge resides. It’s also where there are vascular networks – such that punctures at this depth ofte lead to swelling and/or pinpoint bleeding.

What is the hair follicle stem cell bulge?

The hair follicle stem cell bulge is located 1.0 mm to 1.8 mm deep in our scalp skin near the isthmus (upper third) of the hair follicle – and can usually be found at the base of the arrector pili muscle.

This hair follicle stem cell bulge is sort of like the “source material” for a hair follicle. These stem cells help replenish and repopulate the cells that constitute each hair follicle. If a hair follicle’s stem cell population is completely depleted, hair follicles can no longer replace old cells, and the hair follicles will stop proliferating (or growing).

Hair follicle stem cell bulge

Microneedling For Hair Loss: What's The Best Needle Size? (5)

Interestingly, we can stimulate these stem cells via wounding. If wounds are incurred surrounding these stem cell bulges, the growth factors stimulated during wounding can even signal to these hair follicle stem cells to initiate a new anagen phase of the hair cycle.

For pattern hair loss sufferers, this often means increases to hair counts within the realms of 15% – and that’s withoutanyother therapies. That’s an impressive improvement. But again, it bears repeating…

We only see these hair count increases from studies using microneedling devices (by themselves) that puncture 1.5mm to 2.5mm deep. In other words, we only see these hair count increases at microneedling lengths that stimulate the hair follicle stem cell bulge.

Long-story short: we likely need to microneedle at depths of 1.5mm to 2.5mm if we’re to expect appreciable stimulation of the hair follicle stem cell bulge, and thereby appreciable hair follicle proliferation (i.e., hair regrowth).

Now, it’s worth noting that studies testing microneedlingas a monotherapy have only ever investigated needle lengths of 1.5mm and greater. So, the absence of evidence should not imply evidenceagainst shorter needle lengths. But we also have to make recommendations based on what is known, not postulated. So, consider these limitations as you keep reading.

So, should we all microneedling at needle lengths of 1.5mm or greater?

Not necessarily.

When it comes to needle depths, there isan upper limit. Specifically, we want to avoid puncturing something called an emissary vein.

Emissary veins are bi-directional blood vessels that run from the scalp’s hypodermis (i.e., muscle tissues) through the cranium (i.e., skull bone) and into the brain. When brain infections occur following scalp injuries, they are almost always the result of a puncture to the emissary vein – as an open emissary vein can allow pathogenic bacteria from the epidermis to bypass the skull plate and migrate directly into brain tissues. This can cause serious health ramifications, and even death.

Emissary veins aren’teverywhere on the scalp. And in general, they’re located at depths deeper than 5mm – at the bottom edges of the hypodermis.

There’s no reason for us to risk wounding an emissary vein via microneedling – especially because we can stimulate the hair follicle stem cell bulge at shallower depths (i.e., 1.5 mm to 2.5 mm).

Moreover, the studies that we do have on microneedling for pattern hair loss don’t test needle lengths above 2.5mm. So, don’t deviate from what is clinically supported; don’t go deeper than needle lengths of 2.5mm.

So, now that we’ve established a lower and upper limit for mironeedling needle lengths, let’s revisit that question: which needle length is best for regrowing hair?

Microneedling for hair growth: what’s the best needle length?

Microneedling For Hair Loss: What's The Best Needle Size? (6)

Since microneedling research is still in its infancy, we don’t yet know the best needle length. But we cangive you a general idea of the best needle lengths based on the clinical studies on microneedling published so far.[2]https://link.springer.com/article/10.1007/s13555-021-00653-2

  • In a 2013 study, participants used 5% minoxidil twice-daily alongside microneedling with a 1.5mm needle roller once-weekly. Over three months, the author (Dr. Dhurat) found that the 1.5mm needle roller improved hair regrowth from minoxidil by 400%.
  • In a 2015 study, participants used minoxidil and finasteride daily alongside microneedling with a 1.5mm needler roller either once-weekly or twice-weekly. After six months, the researchers found significant increases to hair counts. (5)
  • In a 2017 study, participants used 5% minoxidil alongside a 1.5mm to 2.5mm automated needler once every two weeks. Over six months, the investigators found comparable hair count increases to that of Dr. Dhurat’s 2013 study. They also found that microneedling alone improved hair counts by ~15%.
  • In a 2020 study, participants applied 5% minoxidil twice daily and microneedled once every two weeks with either a 0.6mm or 1.2mm needle length roller for 12 weeks. They found that microneedling with either length was more effective than 5% minoxidil twice daily by itself. In terms of statistical significance, the study showed that there was no statistical difference between the two lengths with respect to improved hair counts: in conjunction with minoxidil, the 1.2mm needle improved hair counts by about 15% while the 0.6mm needle improved hair counts by about 19%.

But these aren’t the only studies done on microneedling for hair loss. There are many more, which we’ve discussed in our systematic review on the subject (recently publishedinDermatology and Therapy).[3]https://link.springer.com/article/10.1007/s13555-021-00653-2

What do all of the studies tell us?

  • So far, we’ve clinically tested microneedle lengths from 0.25mm to 2.5mm for men with androgenic alopecia (AGA).
  • However, only needle lengths of 1.5mm to 2.5mm were tested as a monotherapy (i.e., not in conjuction with minoxidil or other treatments).
  • At depths of 0.6mm to 2.5mm, microneedling is suspected to increase both topical absorption (with minoxidil) and hair follicle proliferation (as a standalone treatment).

And while the 2020 study demonstrates shorter needle lengths may produce results comparable tolonger needle lengths (at least with respect to hair counts), the majority of evidence still supports the use of a 1.5mm to 2.5mm needle length.

The rationale? There are two factors to the depth of penetration when using microneedles: needle length and applied pressure. In earlier studies, 1.5mm needles were used to evoke erythema (skin redness) whereas, in the 2020 study, the authors aimed to evokebleeding.

This is an important distinction to make.

Because evoking bleeding involves more pressure than just evoking erythema, it’s possible that both the 2020 study (using 0.6mm and 1.2mm needles) and the earlier studies (using 1.5mm needle lengths) penetrated to similar depths — simply due to differences in applied pressure.

The equation also gets more complicated when we evaluate not just “session endpoints”, but also the fact that microneedling rollers versus automated pens puncture at different depths in the scalp skin… even when controlling for the same exact needle length.

Why? Because microneedling rollers “roll” the needles onto the skin. That means the depth those needles actually penetrate is subject to angulation changes and user pressure variability (i.e., how hard someone presses down). However, with automated microneedling pens, studies suggest that needling penetration depths near-perfectly match needle lengths (up to 1.5mm, at least).

Resultantly, the best data we have suggest that microneedling rollers penetrate, on average, just 50-75% of their actual needle length. This makes it even more difficult to make needle length recommendations, because the actual microneedling device influences the answer.

What can be gleaned from all of the data?

Taking into account session endpoints, device differences, hypothetical mechanisms, and clinical outcomes from our latest systematic literature review on microneedling for hair loss, here are the needle lengths we currently recommend:

  • Microneedling roller. Use a 1.0-1.5mm needle length.
  • Microneedling automated pen. Use a 0.6-0.8mm needle length.

These recommendations will hopefully improve topical absorption, stimulate growth factors linked to hair follicle proliferation, and minimize any concerns over infection or the puncturing of short an emissary vein.

Moreover, stick with needlingonce weekly, oronce every two weeks. Again, it’s clinically effective. Other recommendations on other websites are theoretical, anecdotal, and generally unsubstantiated.

What about microneedling every day with a 0.25 mm or 0.5 mm needle length?

As stated earlier, it’s important to note that the absence of evidence does not imply evidenceagainst any treatment protocol.

In other words, just because wedon’t have studies trialing needle lengths smaller than 1.5mm for pattern hair loss (as a standalone treatment), this does not mean that smaller needle lengths are ineffective. It’s just that evidence supporting smaller needle lengths is unsubstantiated.

There are some YouTube personalities claiming to see great microneedling results from microneedling nightly with a 0.25mm and then immediately applying topicals. There are some men onHairLossTalk who are demonstrating results from microneedling every night with a 1.0mm roller.

There may be some benefits to microneedling more frequently – particularly if you’re also using a topical. For example, due to the relatively short half-life of topical minoxidil, users must apply minoxidil twice-daily in order to elicit a significant effect on miniaturizing hair follicles. Microneedlers with needle lengths of 0.25mm to 0.5mm help to increase topical absorption. Moreover, because these needle lengths typically only puncture the epidermis, they can be used more frequently (i.e., once daily) versus microneedlers with needle lengths of 1.5mm+ (i.e., once every week or more).

Thus, some might argue that daily microneedling with a smaller needle length might help to more regularly promote topical absorption, and that this benefit mightoutweighthe stimulation of growth factors elicited from needle depths of 1.5mm and beyond.

But again, these stories are just anecdotes; and the rationales behind shorter needle lengths and more frequent needling are just hypothetical. While we do have people trialing augmented microneedling lengths and schedules in our membership community (with great success), we can’t yet extrapolate their results to what all pattern hair loss sufferers should expect.

Long story short: until these anecdotes stand the test of a clinical trial, we must make our recommendations based on the evidence already available… and that means recommending a 1.5mm to 2.5mm needle length.

The bottom line: for now, stick with 0.6-0.8mm needle lengths for automated pens, and 1.0-1.5mm needle lengths for rollers

These needle lengths are what worked in clinical trials, and they seem to be working well for the people inside of our membership site.

Questions? Comments? Please reach out in the comments section.

Microneedling For Hair Loss: What's The Best Needle Size? (7)

Rob English

Rob English is a researcher, medical editor, and the founder of perfecthairhealth.com. He acts as a peer reviewer for scholarly journals and has published five peer-reviewed papers on androgenic alopecia. He writes regularly about the science behind hair loss (and hair growth). Feel free to browse his long-form articles and publications throughout this site.

Microneedling For Hair Loss: What's The Best Needle Size? (2024)


What size needle for microneedling hair loss? ›

“The scientific literature surrounding hair loss and micro-needling shows that a 1.5 millimeters needle is the most commonly used to treat hair loss,” Burg explains.

What is the best microneedling depth for hair loss? ›

Conclusion: Microneedling with a depth of 0.6 mm in combination with minoxidil is more effective than minoxidil monotherapy in patients with AGA in terms of hair count and hair thickness. This depth of penetration tended to be more beneficial than depth of 1.2 mm.

What size needle is best for hair growth? ›

Which dermaroller size is best for hair growth? An older study found that a dermaroller with 1.5 mm needles effectively promoted hair growth in combination with triamcinolone acetonide . However, most dermarollers available online have 0.25-0.5 mm needles.

What is the difference between 12 and 36 needles for microneedling hair? ›

The 12 pin is recommended for the face, while the 36 pin is more suitable for body. The nano cartridge can be used regularly for improved serum absorption (scroll down to learn more about nano-needling).

Does microneedling work for thinning hair? ›

While used as an anti-aging skin treatment, microneedling may also be a method of treatment for hair loss. There's even evidence that it can help a special type of hair loss known as alopecia areata. The same process of creating wounds in the skin is also thought to regenerate the health of the hair follicles.

How to do microneedling at home for hair loss? ›

How to Microneedle your Scalp and Hair
  1. STEP 1 – DAMPEN HAIR. Use once a week for one month, progress to twice a week from month two. ...
  2. STEP 2 – ROLL (MICRONEEDLE) Microneedle your scalp 5-7 times vertically. ...
  4. STEP 1 – CLEANSE FACE. ...
  6. STEP 3 – HYDRATE.
Dec 21, 2021

Should you microneedle your whole scalp? ›

Unsurprisingly, microneedling isn't recommended for folks who already have a full head of hair, says Dr. Kinler. "You can actually damage the hair that's on the outside of the scalp and you can damage the hair follicles underneath the scalp, especially if the needle depth is too much," she explains.

Which microneedling size is best? ›

For treating acne and other scars as a routine, a needle length of 1.5–2 mm is usually used. When microneedling is used as a procedure to treat ageing skin and wrinkles, the needle length of 0.5 mm or 1.0 mm is usually recommended.

How many minutes should you microneedle your scalp? ›

A typical microneedling session may last 45 minutes to an hour—give or take. First, your derm or trichologist will cleanse your scalp or the exact area where you would like to stimulate hair growth. Then, using a topical serum they will numb said area so that the treatment is not painful.

How often should I microneedle for hair loss? ›

You should never derma roll more than twice a week. It is best to only go over your problem areas one time in a single treatment. You don't want to repeatedly go over the scalp as this could cause more injury and possibly infection.

How many microneedling sessions are needed for hair growth? ›

Usually a minimum of 10 sessions is required to stimulate hair growth. We recommend starting with an intensive course of treatments every 2 weeks for the first 2-3 months. The frequency then gradually decreases and the results of hair rejuvenation become evident already after 2-3 months.

How many microneedling treatments are needed for hair growth? ›

Clinical studies show that microneedling once every 1-3 weeks helps to regrow hair. Then again, 1-3 week intervals are the only frequencies studied for pattern hair loss.

Does microneedling work over 60? ›

Microneedling is a skincare treatment that can be beneficial for women over 50. It can help to improve the appearance of wrinkles, scars, and stretch marks, and it can also increase the absorption of skincare products.

What size needle for microneedling at home? ›

Generally, a needle length of 0.25 mm to 1.0 mm works best.

How many pins is best for microneedling? ›

As a general rule, nano pins are best for increasing product absorption, 11-16 pins are best for targeted applications and 36-42 pins are best for larger and more sensitive areas (such as your neck, upper/inner thighs and underarm).

How long does it take for microneedling to regrow hair? ›

Initiation of new hair growth was noticeable by around 6 weeks in Microneedling group and by 10 weeks in Minoxidil group. Rapid growth in the existing hair was seen at week 1 in the Microneedling group than Minoxidil group [Figure 8].

Is microneedling better than PRP for hair loss? ›

Results. A greater proportion of patients in the microneedling group achieved a negative hair-pull test and improved perception of hair loss compared to the PRP-alone group (82.1% vs. 51.9% and 88.0% vs. 73.9%, respectively).

Can microneedling stop receding hairline? ›

Microneedling with a dermaroller involves rolling the tool across certain areas of your skin while maintaining firm, consistent pressure. For treating hair loss, this means using the dermaroller on areas with a visible reduction in hair count, such as a receding hairline or thinning patch.

Can I use 0.5 mm derma roller everyday for hair growth? ›

Can I Use a 0.5 Mm Derma Roller Every Day? No, do not use any derma roller every day. Use the 0.5 mm derma roller once every three weeks. You need to give your cells the time to activate and regenerate for hair growth.

Should you microneedle your hair wet or dry? ›

Make sure it is completely dry before using, and do not use it on wet hair. Use cotton balls to apply your oils and topicals to your scalp. Do not apply them to the derma roller.

Do you shower after microneedling scalp? ›

+ Make sure to not wash your hair at least 4 hours after treatment. after exercise (in any case, before going to bed). Your scalp might become infected easier after the treatment if not washed.

How often should I microneedle my scalp? ›

“Once you feel confident, you can roll in the opposite direction also, applying only light pressure.” She recommends microneedling your scalp just once a week for the first month, then twice a week in the second month. After two months, once-monthly treatments are all you need for upkeep.

Is 0.5 mm derma roller effective for hair regrowth? ›

It's actually most commonly used to treat acne scarring, stretch marks and wrinkles. However, it's also proven to be very effective at stimulating hair growth. The derma roller is frequently used alongside Pharma Hermetic Hair Recovery Program for best results, though it can also be used alone.

What happens if you microneedle too much? ›

Microneedling too often can create more inflammation and pigmentation, and the skin will take even longer to heal. Stick to the instructions that come with your microneedling pen to avoid causing damage.

Does microneedling work for a 70 year old woman? ›

Answer: Microneedling treatment in older patient

As we age, collagen product does slow down. You should still see results after microneedling treatment but it may more sessions and more time to see a good result.

Does microneedling work on 70 year olds? ›

The short answer is yes – it works on older skin, it works on younger skin and it works on any skin type. Before you start your microneedling session, make sure you have cleaned your skin properly. This helps to avoid infections and other health risks.

Can I do microneedling forever? ›

However, the improvement isn't permanent; in fact, most microneedling providers recommend that clients schedule a series of treatments four to six weeks apart. After the last treatment session, your microneedling results can last up to years as long as proper skin care and maintenance are used in between sessions.

How much pressure do you apply when microneedling? ›

Take your derma roller and roll in one direction six-eight times; lifting the roller up off the face every time to prevent track marks. There's no need to press too firmly on the skin – only apply as much pressure as you can handle.

How often can you use a .25 microneedle? ›

While the exact number will vary depending on the patient and the length of the needle, microneedling pens should only be used every four to six weeks. Any more will impede the body's natural healing process, which makes them more likely to develop an active skin infection or skin injuries with prolonged use.

Can I do microneedling at home everyday? ›

The ideal time to do microneedling is before bed, so that actives can be allowed to penetrate while you sleep. But the key thing is to not overdo it; more is not always best, as you will keep creating inflammation. Stick to no more than twice a week.

What speed should I microneedle at? ›

Most Dr. Pen Australia microneedling pens have a speed range of 1-5. As a general rule, the faster you set the speed on your microneedling pen, the deeper the needle will penetrate your skin.
Needle Speed Guide.
Skin AreaRecommended Speed
Face (General)1-4
Body (General)4-6
Between Eyebrows1-3
5 more rows

Is more needles better for MicroNeedling? ›

More needles makes micro-needling treatment faster and allows to create more collagen induction micro-channels. Thinner needles for less painful derma-rolling.

How often should you Microneedle 0.5 mm? ›

0.5mm long needles can be used once a week on the same skin area. 0.75mm long needle can be used once every second week on the same skin area. 1 mm can be used every 4 weeks on the same skin area. 1.5mm can be used every 5 weeks on the same skin area.

What size microneedle should I use on my scalp? ›

For microneedling the scalp, we recommend using a needle depth of 1.5mm as this will best penetrate through hair and scalp buildup.

Can I use 1.5 mm derma roller on my scalp? ›

It has a handle and roller covered in tiny needles that usually vary in length from 0.2 mm to 1.5 mm. This may sound intimidating, but derma rolling shouldn't be painful. You might experience some discomfort, but it should be tolerable. Derma rollers can be used on your skin, beard, and scalp.

Does dermaroller 0.5 mm hair regrowth? ›

Which Derma Roller Size Is Best for Hair? The best size of needles is between 0.225-0.5mm. These microneedles will encourage hair growth by puncturing your scalp just enough to prevent hair loss and boost hair growth.

Can I microneedle my scalp everyday? ›

You should never derma roll more than twice a week. It is best to only go over your problem areas one time in a single treatment. You don't want to repeatedly go over the scalp as this could cause more injury and possibly infection.

Can you microneedle your whole scalp? ›

After applying a topical anesthetic, they'll roll the dermaroller across your scalp from every direction, just like your barber does during a haircut. The whole procedure can be completed in less than 10 minutes. Once it's done, your doctor might apply a topical balm to soothe any irritation.

How often should I use a 0.5 mm derma roller for hair loss? ›

The best frequency would be to use a dermaroller once every three weeks. This is because your scalp is tender and dermaroller usage entails microneedling, which stimulates it. You overdo it, and the results may not be desirable.

Which derma roller to buy for hair loss? ›

Doctors recommend derma roller for hair growth, having needles between 0.5-1.5 millimeters. To tackle hair loss, you can use a derma roller 0.5 mm. Derma roller 1.5 mm helps with stimulating hair growth as it can cause punctures that allow topical and hair oil to penetrate through the scalp better.

Can I use 0.5 mm Derma Roller once in a week? ›

0.5mm long needles can be used once a week on the same skin area. 0.75mm long needle can be used once every second week on the same skin area. 1 mm can be used every 4 weeks on the same skin area.

Is 1 mm dermaroller good for hair growth? ›

Derma rolling (micro needling) is an affordable and effective tool to stimulate hair growth. To maximize results we recommend the use of a topical hair growth lotion such as Pharma Hermetic Hair Recovery Program Ampoules or Minoxidil .

How often should I use 1.5 dermaroller for hair? ›

"The shorter the needles, like 0.25 millimeters, the more often you can use it." She recommends every two to three days. For longer needles, like 1.5 millimeters, she recommends every couple of weeks since it punctures more deeply.

How many minutes should I derma roll my scalp? ›

Dermarolling the scalp takes all of five minutes a day and the results are incredible, not to mention the best part being that this practice is actually backed by science.

Is 0.75 mm derma roller for hair loss? ›

It can be used for hair regrowth treatment as well as anti-ageing solution.

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