January 2026 in “Dermatologic Therapy” This study found that Pinus massoniana needles extract may promote hair regrowth in a mouse model of androgenetic alopecia, potentially by reducing oxidative stress and affecting immune, metabolic, and apoptosis-related pathways.
January 2026 in “NRCT Data Center” In this study, topical sildenafil citrate was found to improve hair regeneration in a rat model of androgenic alopecia, showing superior long-term effects compared to minoxidil, including increased hair follicle numbers and epidermal thickness.
In this preclinical study, PA-011 derived from Periplaneta americana showed significant hair regrowth effects in androgenetic alopecia mouse models by inhibiting inflammation and oxidative stress, activating hair follicle stem cell proliferation, and normalizing skin microbiota, suggesting promise as an AGA treatment.
This study found that an ethanolic extract of Ganoderma lucidum, especially at 15mg/kg, may promote hair growth in a rat model of testosterone-induced alopecia, showing effects comparable to minoxidil.