Women’s ROGAINE® Hair Re-growth Treatment Foam 5% is the only women’s once-daily hair regrowth medicated foam clinically proven to regrow hair. The active ingredient in Women’s ROGAINE® Foam, 5% minoxidil, reactivates hair follicles to help regrow a fuller head of hair over time. Women’s ROGAINE® Foam 5% is proven to regrow hair in 8 out of 10 women* and to regrow thicker hair**