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.
June 2021 in “Zenodo (CERN European Organization for Nuclear Research)” This study evaluated the stability and capillary growth-stimulating activity of emulsions made with natural plant extracts and oils in vivo on guinea pigs, finding that specific hydrophilic/lipophilic balance and globule size contribute to a stable and effective formulation.
November 2025 in “Zenodo (CERN European Organization for Nuclear Research)” This study suggests that the prepared herbal hair oil may promote hair growth, prevent dandruff, and offer an alternative to synthetic products with potentially fewer side effects.
June 2021 in “World Journal Of Advanced Research and Reviews” In this study, researchers evaluated emulsions made with natural plant extracts and oils on guinea pigs, finding that a specific hydrophilic/lipophilic balance and globule size led to a stable emulsion and stimulated hair growth.
November 2025 in “Journal of Neonatal Surgery” This study developed an herbal hair oil containing plant extracts such as Aloe barbadensis and Nigella sativa, reporting it showed good antioxidant and antimicrobial activity, suggesting potential benefits for hair growth and hair fall prevention.