Minoxidil is marketed as Rogaine and as a generic. Minoxidil is a liquid that is rubbed into the scalp twice daily. Its effectiveness varies. Generally about 25 percent of men and 20 percent of women experience some hair regrowth with regular-strength minoxidil. An extra-strength version of minoxidil, recently approved for use by men only, may generate as much as 45 percent more hair regrowth than the regular strength product.
New hair resulting from minoxidil use is often thinner and lighter in color than previous hair.
Sometimes the regrown hair resembles baby hair. There are not many people who get all their hair back, and it's usually not quite as thick. But there can be enough for some people to hide the bald spots and have it blend with existing hair. It stops working soon after use is discontinued. Dr. Gibson recommends that people stop treatment if they experience insignificant results within 6 months.