Long-term follow-up of men with male pattern baldness treated with topical minoxidil

    Elise A. Olsen, Elizabeth R. DeLong, Madeline S. Weiner
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    TLDR Minoxidil keeps most hair growth from first year and twice-daily use is better with few side effects.
    The study followed 41 men with male pattern baldness who completed 132 study weeks (2 years 9 months) with topical minoxidil. Continued use of topical minoxidil sustains the majority of vertex nonvellus hair growth initiated during the first 12-month period of topical minoxidil use and twice-daily application of topical minoxidil is preferable to once-daily application for maintenance therapy. The study also found that side effects were minimal and well tolerated.
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