Different amounts of propylene glycol change the thickness of katuk leaf hair tonic.
September 2022 in “KnE medicine” Argan oil in hair tonic increases hair growth and weight in mice, with the best results at 3% concentration.
November 2017 in “Asian journal of pharmaceutical and clinical research” Three compounds from Dadap leaves may help treat hair loss.
July 2025 in “JURNAL BIOLOGI TROPIS” A shampoo with teak leaf extract and coconut oil can significantly boost hair growth and reduce hair loss.
May 2020 in “Jurnal Penelitian Perawat Profesional” Katuk leaves may help prevent hair loss.