Rogaine for Men Hair Regrowth Treatment, 5% Minoxidil Topical Aerosol, Easy-to-Use Foam, 2.11 Ounce. Men's ROGAINE Foam is easy to use--and best of all, it works. Make ROGAINE Foam part of your everyday regimen and feel proud of your hair again. ROGAINE Foam goes on easily and dries quickly. In clinical testing, it regrew hair in 85% of men after four months when used twice daily.