January 2020 in “Global dermatology” This study investigated the effects of GFC with FGF5s and NMN at a depth of 0.8 mm using a microneedle for treating hair loss, but the abstract provides no measurable results.
January 2016 in “Global dermatology” A treatment called Cellcurin, combined with microneedling, significantly increased hair density and diameter in patients with hair loss.
February 2026 in “Journal of Integrative Neuroscience” In this study, transplantation of hair follicle stem cells and nerve growth factor-modified stem cells significantly reduced amyloid deposition and tau hyperphosphorylation in an Alzheimer's disease rat model, suggesting potential as a treatment option.
September 2017 in “Journal of Clinical Dermatology” This study found that applying a growth factor cocktail including FGF9 with microneedling significantly increased hair density and diameter in patients with androgenetic alopecia, with similar results regardless of microneedle depths between 0.5 mm and 0.8 mm.
January 2016 in “프로그램북(구 초록집)” This study found that growth factor cocktail treatment including FGF9, combined with microneedling, significantly improved hair density in androgenetic alopecia patients compared to treatment with regular GFC or normal saline.
