June 2023 in “MPI (Media Pharmaceutica Indonesiana)” A hair tonic made from kale leaves is effective for hair growth and meets Indonesian standards.
September 2020 in “Pharmauho/Pharmauho : Jurnal Farmasi, Sains dan Kesehatan” The hair tonics with galangal and Aloe vera extracts were stable and met standards.
September 2023 in “Jurnal MIPA (edisi elektronik)” Lime extract can be used to make a stable hair tonic with beneficial compounds.
July 2023 in “International journal of trichology” The research found no clear link between the severity of male baldness and the scalp examination findings in Indonesian men.
January 2018 in “International journal for pharmaceutical research scholars” Meniran extract hair tonic may stimulate hair growth in rats, with the version containing 1% menthol being more effective.