Mens Rogaine Solution can help regrow hair in men with hereditary hair loss. The 5 percent minoxidil solution absorbs quickly into the scalp to reactivate hair follicles, increasing their size and allowing for normal, healthy hair to develop. This hair growth treatment is the first FDA-approved topical product proven to help regrow hair in men with hereditary hair loss. After eight weeks of twice-daily use, you may begin to experience regrowth; some users may take up to four months to see results. This package of Mens Rogaine Solution includes one 2 ounce bottle, a one-month supply.