January 2021 in “Advanced Biomedical Engineering” Needle shape affects the force needed for hair implants, with certain shapes reducing the effort required.
June 2026 in “Frontiers in Cell and Developmental Biology” Smaller needles help protect stem cells during injections.
June 2026 in “Journal of Cutaneous and Aesthetic Surgery” Recipient site scalp necrosis in hair transplantation is linked to microvascular injury and regional vascular vulnerability, especially in the frontal and mid-scalp areas.
4 citations
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May 2019 in “Journal of Cosmetic Dermatology” Using a smaller syringe causes less pain when giving an injection.
17 citations
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January 1999 in “Journal of Molecular Structure” Finasteride's molecular and crystal structures help develop new drug formulations.