April 2022 in “Jurnal Penelitian Farmasi dan Herbal” In this study, hair tonic containing 15% patchouli leaf extract showed the greatest hair growth in rabbits, with higher concentrations leading to faster regrowth.
March 2018 in “Farmacevtičnij časopis” In this study, researchers developed an optimized production process for the herbal tincture "Stimufit," intended for topical use in treating telogen alopecia, using 40% ethanol and a specific extraction method.
June 1994 in “The American Journal of Cosmetic Surgery” This article discusses the growing demand and challenges in the hair transplantation industry, emphasizing the lack of formal training for physicians but reports no new clinical results.