September 2011 in “대한미용학회지” In this study, topical application of 5% bear oil on C57BL/6 mice accelerated hair regrowth and increased hair follicle depth and size more than 2% bear oil, minoxidil, or ethanol.
March 2024 in “Molecules/Molecules online/Molecules annual” This study optimized the extraction process of bear grease through enzymatic hydrolysis and found that it was rich in unsaturated fatty acids, enhancing its hair growth-promoting properties in mice compared to traditional methods.