Compare to the active ingredient in Women's Rogaine®. Hair Regrowth Treatment For Women, Minoxidil Topical Aerosol, 5% (Foam) contains Minoxidil 5%, the dermatologist Recommended Active Ingredient* for hair regrowth. When used as directed, this once a day foam works beneath the surface to reactivate hair follicles to stimulate hair regrowth on top of the scalp. For women who have a general thinning of hair on the top of the scalp. Made in Israel.*Of U.S. Physicians surveyed by an independent market research firm.