Regaine for women regular strength is medically proven to treat common hereditary hair loss in women between the ages of 18 65 by preventing further hair loss and helping hair to re grow regaine for women contains minoxidil 2 which is thought to work by helping the flow of blood to your hair follicles on your scalp brregaine for women should be used twice daily for a period of 4 months before you begin to see new hair re growth in clinical studies 3 out of every 5 women reported hair re