How long does hair regrowth last after 48 months from 5% minoxidil?

Rogaine or minoxidil is a topical hair loss medication that helps certain patients who are still having active hair loss. It helps regrow hair in certain parts of scalp that still have hair.  The best effect is usually seen after 6 months and can get better for 12 to 18 months.

Minoxidil will continue its efficacy as long as it is used daily and massaged into your scalp. There are differences between versions of minoxidil and particularly the solution versus the foam where there is a lot of variability in the solvent used to mixed minoxidil rendering it oily in some.