December 2015 in “Vascular Pharmacology” Hair papilla cells are crucial for blood vessel development in hair follicles, affecting hair growth and loss.
October 2021 in “Journal of Investigative Dermatology” In this study, the researchers found that scalp hair follicles affected by female pattern hair loss are poorly vascularized, likely affecting nutrient delivery, but capable of nutrient uptake when supplemented.
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August 2022 in “Journal of Controlled Release” In this study, a microneedle patch containing conditioned media from hypoxia-pretreated stem cells enhanced hair regeneration in an androgenetic alopecia mouse model by boosting perifollicular vascularization and hair follicle stem cell activation compared to minoxidil.
October 2025 in “Research Square (Research Square)” This study found that perifollicular vascularization adapts to physiological changes, with minoxidil enhancing capillary growth around the dermal papilla and aging-related factors inhibiting it, suggesting potential interventions for hair loss.
April 2026 in “Scientific Reports” This study found that perifollicular vascularization around the dermal papilla adjusts dynamically to physiological changes, with minoxidil enhancing vessel mobilization and aging processes inhibiting it, highlighting potential targets for treating hair loss and skin aging.