Women's Rogaine® Hair Regrowth Treatment, Once-a-Day Foam helps regrow thicker, fuller, beautiful hair. The foam reactivates hair follicles to regrow hair. It's FDA approved and clincally proven to help regrow hair in 81%* thicker than before. Clinical results were seen in as little as 12 weeks and visible results after 24 weeks with continuous daily use. From the number-one dermatologist recommended brand, the once-a-day applied foam can fit into your regular beauty routine.