Compare to Men s Rogaine Extra Strength active ingredient. Don t let thinning hair get you down. Minoxidil Topical Solution USP 5 Percent is an extra strength topical hair loss treatment used to help regrow hair on top of the scalp (vertex only). This unscented product reactivates hair follicles to stimulate regrowth and is clinically proven to help regrow hair. It is not intended for frontal baldness or receding hairline. Minoxidil is the number one dermatologist recommended active ingredient (of U.S. physicians surveyed by an independent market research firm). This product is not intended for use by women.