This case report and literature review concluded that using the follicular unit extraction technique for hair transplants in androgenetic alopecia patients yields satisfactory aesthetic results and high patient satisfaction over 12 months.
July 1998 in “Dermatologic Surgery” Various techniques and tools for hair restoration were presented in 1998, including a mathematical model for donor area, use of lasers in surgery, methods for controlling grafted hair direction, and ways to increase graft yield. Satisfaction rates were around 39%, and studies showed trauma and dehydration can damage hair follicles.
November 2023 in “International Journal of Pharmaceutics” This study found that a new transdermal drug delivery system using globefish skin collagen peptides and dissolving microneedles effectively promoted hair regrowth in mice with androgenetic alopecia by reducing inflammation and enhancing vascularization.
January 2023 in “Nanomedicine & nanotechnology open access” This review suggests that microneedling shows promise for improving hair quality, thickness, and density in treating androgenetic alopecia, but standardized treatment protocols are currently lacking.
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February 2021 in “Journal of Cosmetic Dermatology” In this study, mathematical analysis suggested that a 30°-sapphire blade caused the least tissue injury during hair restoration, while a rectangular blade caused the most.