June 2026 in “Frontiers in Cell and Developmental Biology” Smaller needles help protect stem cells during injections.
11 citations
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November 2023 in “Skin Research and Technology” A 2 mm needle is effective and precise for skin injections.
1 citations
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May 2013 in “Polymer-korea” Micro-needles with minoxidil may help hair growth.
January 2021 in “Advanced Biomedical Engineering” Needle shape affects the force needed for hair implants, with certain shapes reducing the effort required.
January 2013 in “프로그램북(구 초록집)” A 0.5 mm microneedle roller best promotes hair growth.