10 citations
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September 2020 in “Journal of Cosmetic Dermatology” Deeper microneedling boosts hair growth, with 0.6mm needles and minoxidil being most effective.
4 citations
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May 2019 in “Journal of Cosmetic Dermatology” Using a smaller syringe causes less pain when giving an injection.
September 2025 in “PubMed” Combining microneedling with drugs and stem cells shows promise for improving hair growth in androgenetic alopecia.
April 2024 in “Dermatologic surgery” Microneedling at a depth of 0.5 mm is the most effective single treatment for hair loss among the tested depths.
2 citations
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March 2024 in “Pharmaceutics” The placebo microneedle stamp didn't penetrate skin and caused less pain, but blinding was only effective for those with low skin sensitivity.