Dose-response study of topical minoxidil in male pattern baldness
July 1986
in “Journal of The American Academy of Dermatology”
TLDR Lowest effective minoxidil concentration is 1%, but 2% works better for male pattern baldness.
This study aimed to determine the lowest effective concentration of topical minoxidil for male pattern baldness. The study found that 1% topical minoxidil was the lowest effective concentration, while 2% topical minoxidil had more impressive responses. The study also found that topical minoxidil limited to 1 ml twice daily in concentrations to 2% produced no significant side effects in this healthy male population. The study concluded that 2% topical minoxidil will probably remain the preferred treatment for male pattern baldness until further studies comparing its efficacy to 1% topical minoxidil over a longer time period are performed.
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