Regaine 5% scalp solution men foam 180 mlRogaine 5% foam contains minoxidil. Minoxidil causes hair regrowth and stabilizes the course of hair loss in men with receding hairlines and in the tonsural area of the scalp by revitalizing the hair follicles. Rogaine 5% foam is used to treat men with hereditary hair loss (androgenetic alopecia). The drug is for external use on the scalp only. Contraindications Do not use Rogaine 5% foam if you are allergic to minoxidil or any of the other