Women's Rogaine 5% Minoxidil Foam for Hair Loss and Hair Regrowth - 4-Month SupplyDescription Regrow thicker, beautiful hair with Women's ROGAINE Hair Regrowth Treatment, Once a Day Foam. Containing 5% minoxidil, this foam reactivates hair follicles to regrow hair. The only once daily hair regrowth treatment for women approved by the FDA, this formula is proven to help regrow hair in 81%* of women, with clinical results in as little as 12 weeks and visible results with continuous daily use after 24 weeks. From the #1 dermatologist