A randomized, placebo-controlled trial of 5% and 2% topical minoxidil solutions in the treatment of female pattern hair loss

This 2004 randomized controlled trial published in the Journal of the American Academy of Dermatology (PMID: 15034503) evaluated the efficacy and safety of 5% and 2% topical minoxidil in 381 women aged 18–49 with female pattern hair loss (FPHL) over 48 weeks. Both concentrations led to significant increases in non-vellus