Does microneedling boost minoxidil results for women, or only for men? Most of the well-known microneedling trials recruited male participants, which left women guessing whether the combination applied to them. A 2022 randomised trial from Shanghai answered the question directly: in 40 women with female pattern hair loss, adding weekly microneedling to 2% minoxidil nearly doubled the response rate, from 45% with minoxidil alone to 85% with the combination, over 24 weeks.
Study by Zhang, Sheng, Zeng and colleagues, published in the Journal of Cosmetic Dermatology (2022). Summarised by Malcolm Smith, Founder of Hairgenetix. Medically reviewed by Dr. Esther Bodde, MD, Cosmetic & Plastic Surgeon. Last updated 2 September 2026.
Quick answer
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The combination nearly doubled the response rate: 85% of women using weekly microneedling plus daily 2% minoxidil were classed as responders, versus 45% on minoxidil alone.
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Hair counts were also higher in the combination group after the 24-week treatment period.
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Safety was reassuring: every adverse reaction recorded during treatment was mild, and no severe adverse event occurred in either group.
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The practical lesson for women: microneedling is not a men-only add-on. Paired with the standard female minoxidil routine, it clearly amplified results in this trial.
This article is part of our complete guide to microneedling for hair growth. The microneedling device guide for hair growth covers the practical device choice.
Why does this study matter?
Female pattern hair loss is common, progressive and notoriously undertreated. Topical minoxidil is the first-line option, and for women the traditional standard is the 2% solution, a lower concentration than the 5% typically used by men. The catch is that many women respond only partially to minoxidil alone, and the treatments men add on top, such as finasteride, are usually off the table.
Meanwhile, the strongest microneedling evidence was built almost entirely in men, and a result in male scalps does not automatically transfer to women, whose pattern of thinning and hormonal drivers differ. Zhang and colleagues ran the missing experiment: a randomised trial of the combination in women only, at the 2% concentration women are actually prescribed.
What did the researchers do?
The team, from two Fudan University hospitals in Shanghai, recruited 40 women with diagnosed female pattern hair loss and randomised them into two equal groups of 20. The control group used 2% topical minoxidil. The combination group used the same daily 2% minoxidil plus a microneedling session every week. Both groups were treated for 24 weeks, and the researchers confirmed there were no significant differences in age or duration of hair loss between the groups at the start.
The design mirrors the classic male combination trials, with two deliberate differences: the minoxidil strength matched the female standard, and the needling was weekly rather than monthly, a more intensive schedule than several earlier studies used.
What did they find?
| Outcome |
2% minoxidil alone |
Microneedling + 2% minoxidil |
| Effective rate at 24 weeks |
45% |
85% |
| Hair counts |
Lower |
Higher |
| Adverse reactions |
Mild only |
Mild only |
| Severe adverse events |
None |
None |
The headline number is the effective rate: 85% of women in the combination group responded, against 45% on minoxidil alone, a statistically significant difference and close to a doubling. Hair counts were also higher in the combination group, and the authors concluded that the combination was both more effective and safe, with the benefit holding through treatment and follow-up.
The safety picture is reassuring: every adverse reaction observed during the 24 weeks was mild, and neither group recorded a single severe adverse event.
How does this fit the wider evidence for women?
This trial no longer stands alone. A larger randomised trial in 120 women, Liang 2022, tested minoxidil plus microneedling against minoxidil alone, and injection-based approaches have been studied in women too, as in the Moftah 2013 mesotherapy trial. The studies point the same way: for women, adding a follicle-directed physical treatment to a topical routine outperforms the topical alone. Zhang 2022 is the cleanest head-to-head test of that idea at the standard female minoxidil concentration.
Limitations to keep in mind
This was a small trial: 40 women in total, 20 per arm, at a single pair of affiliated hospitals, in a Chinese population. Small trials can overestimate effect sizes, and 24 weeks is short for a condition that plays out over years. The published abstract reports hair counts as higher in the combination group without giving the numbers, so we quote the direction rather than a figure. And because the trial used 2% minoxidil, the standard concentration for women, it cannot say how much needling adds on top of the 5% strength some women now use. That is why we call this strong evidence rather than final proof.
What does this mean for your routine?
If you are a woman using minoxidil and getting only a partial response, this trial is the best direct evidence that adding a weekly microneedling session can meaningfully raise your odds of responding. The pattern is the same one the male trials established: the needling opens micro-channels and triggers a wound-healing growth response, and the topical supplies the active. That two-part logic is exactly what our Copper Peptide Derma Stamp Set packages for people who prefer a peptide serum as the topical half. For depth, frequency and aftercare, work through the complete guide step by step.
Frequently asked questions
Does microneedling work for female pattern hair loss?
In this randomised trial of 40 women, adding weekly microneedling to daily 2% minoxidil raised the response rate from 45% to 85% over 24 weeks. It is the most direct evidence available that the combination approach works in women, not just men.
How often did the women microneedle in the study?
Once a week, alongside daily 2% minoxidil, for 24 weeks. That is a more intensive schedule than the monthly sessions used in several earlier male trials.
Was the combination safe for women?
Yes, within this study. All adverse reactions recorded during the treatment period were mild, and no severe adverse event occurred in either group.
Why did the trial use 2% minoxidil instead of 5%?
Because 2% is the traditional standard concentration for female pattern hair loss. Testing at 2% makes the result directly relevant to the routine most women are actually prescribed, though it means the trial cannot say how much needling adds on top of 5%.
Is a 40-person trial big enough to trust?
Big enough to take seriously, too small to be final. The effect was large and statistically significant, and it agrees with larger trials such as Liang 2022 in 120 women, but small trials can overestimate benefits, so we treat this as strong supporting evidence rather than proof.
References
1. Zhang Y, Sheng Y, Zeng Y, et al. "Randomized trial of microneedling combined with 2% minoxidil topical solution for the treatment of female pattern hair loss in a Chinese population." Journal of Cosmetic Dermatology, 2022. PubMed 36214061.
2. Liang X, Chang Y, Wu H, et al. "Efficacy and Safety of 5% Minoxidil Alone, Minoxidil Plus Oral Spironolactone, and Minoxidil Plus Microneedling on Female Pattern Hair Loss." Frontiers in Medicine, 2022. PubMed 35899211.
3. Dhurat R, Sukesh M, Avhad G, et al. "A randomized evaluator blinded study of effect of microneedling in androgenetic alopecia." International Journal of Trichology, 2013. PubMed 23960389.
4. Gupta AK, Quinlan EM, Venkataraman M, Bamimore MA. "Microneedling for hair loss." Journal of Cosmetic Dermatology, 2022. PubMed 34714971.
Microneedling With 2% Minoxidil for Women: the Zhang 2022 Trial
Does microneedling boost minoxidil results for women, or only for men? Most of the well-known microneedling trials recruited male participants, which left women guessing whether the combination applied to them. A 2022 randomised trial from Shanghai answered the question directly: in 40 women with female pattern hair loss, adding weekly microneedling to 2% minoxidil nearly doubled the response rate, from 45% with minoxidil alone to 85% with the combination, over 24 weeks.
Study by Zhang, Sheng, Zeng and colleagues, published in the Journal of Cosmetic Dermatology (2022). Summarised by Malcolm Smith, Founder of Hairgenetix. Medically reviewed by Dr. Esther Bodde, MD, Cosmetic & Plastic Surgeon. Last updated 2 September 2026.
This article is part of our complete guide to microneedling for hair growth. The microneedling device guide for hair growth covers the practical device choice.
Why does this study matter?
Female pattern hair loss is common, progressive and notoriously undertreated. Topical minoxidil is the first-line option, and for women the traditional standard is the 2% solution, a lower concentration than the 5% typically used by men. The catch is that many women respond only partially to minoxidil alone, and the treatments men add on top, such as finasteride, are usually off the table.
Meanwhile, the strongest microneedling evidence was built almost entirely in men, and a result in male scalps does not automatically transfer to women, whose pattern of thinning and hormonal drivers differ. Zhang and colleagues ran the missing experiment: a randomised trial of the combination in women only, at the 2% concentration women are actually prescribed.
What did the researchers do?
The team, from two Fudan University hospitals in Shanghai, recruited 40 women with diagnosed female pattern hair loss and randomised them into two equal groups of 20. The control group used 2% topical minoxidil. The combination group used the same daily 2% minoxidil plus a microneedling session every week. Both groups were treated for 24 weeks, and the researchers confirmed there were no significant differences in age or duration of hair loss between the groups at the start.
The design mirrors the classic male combination trials, with two deliberate differences: the minoxidil strength matched the female standard, and the needling was weekly rather than monthly, a more intensive schedule than several earlier studies used.
What did they find?
The headline number is the effective rate: 85% of women in the combination group responded, against 45% on minoxidil alone, a statistically significant difference and close to a doubling. Hair counts were also higher in the combination group, and the authors concluded that the combination was both more effective and safe, with the benefit holding through treatment and follow-up.
The safety picture is reassuring: every adverse reaction observed during the 24 weeks was mild, and neither group recorded a single severe adverse event.
How does this fit the wider evidence for women?
This trial no longer stands alone. A larger randomised trial in 120 women, Liang 2022, tested minoxidil plus microneedling against minoxidil alone, and injection-based approaches have been studied in women too, as in the Moftah 2013 mesotherapy trial. The studies point the same way: for women, adding a follicle-directed physical treatment to a topical routine outperforms the topical alone. Zhang 2022 is the cleanest head-to-head test of that idea at the standard female minoxidil concentration.
Limitations to keep in mind
This was a small trial: 40 women in total, 20 per arm, at a single pair of affiliated hospitals, in a Chinese population. Small trials can overestimate effect sizes, and 24 weeks is short for a condition that plays out over years. The published abstract reports hair counts as higher in the combination group without giving the numbers, so we quote the direction rather than a figure. And because the trial used 2% minoxidil, the standard concentration for women, it cannot say how much needling adds on top of the 5% strength some women now use. That is why we call this strong evidence rather than final proof.
What does this mean for your routine?
If you are a woman using minoxidil and getting only a partial response, this trial is the best direct evidence that adding a weekly microneedling session can meaningfully raise your odds of responding. The pattern is the same one the male trials established: the needling opens micro-channels and triggers a wound-healing growth response, and the topical supplies the active. That two-part logic is exactly what our Copper Peptide Derma Stamp Set packages for people who prefer a peptide serum as the topical half. For depth, frequency and aftercare, work through the complete guide step by step.
Frequently asked questions
Does microneedling work for female pattern hair loss?
In this randomised trial of 40 women, adding weekly microneedling to daily 2% minoxidil raised the response rate from 45% to 85% over 24 weeks. It is the most direct evidence available that the combination approach works in women, not just men.
How often did the women microneedle in the study?
Once a week, alongside daily 2% minoxidil, for 24 weeks. That is a more intensive schedule than the monthly sessions used in several earlier male trials.
Was the combination safe for women?
Yes, within this study. All adverse reactions recorded during the treatment period were mild, and no severe adverse event occurred in either group.
Why did the trial use 2% minoxidil instead of 5%?
Because 2% is the traditional standard concentration for female pattern hair loss. Testing at 2% makes the result directly relevant to the routine most women are actually prescribed, though it means the trial cannot say how much needling adds on top of 5%.
Is a 40-person trial big enough to trust?
Big enough to take seriously, too small to be final. The effect was large and statistically significant, and it agrees with larger trials such as Liang 2022 in 120 women, but small trials can overestimate benefits, so we treat this as strong supporting evidence rather than proof.
References
1. Zhang Y, Sheng Y, Zeng Y, et al. "Randomized trial of microneedling combined with 2% minoxidil topical solution for the treatment of female pattern hair loss in a Chinese population." Journal of Cosmetic Dermatology, 2022. PubMed 36214061.
2. Liang X, Chang Y, Wu H, et al. "Efficacy and Safety of 5% Minoxidil Alone, Minoxidil Plus Oral Spironolactone, and Minoxidil Plus Microneedling on Female Pattern Hair Loss." Frontiers in Medicine, 2022. PubMed 35899211.
3. Dhurat R, Sukesh M, Avhad G, et al. "A randomized evaluator blinded study of effect of microneedling in androgenetic alopecia." International Journal of Trichology, 2013. PubMed 23960389.
4. Gupta AK, Quinlan EM, Venkataraman M, Bamimore MA. "Microneedling for hair loss." Journal of Cosmetic Dermatology, 2022. PubMed 34714971.