Minoxidil converts vellus hairs (which are short, fine body hair) to terminal hairs (fully developed regular body hair), and also increases the growth phase of hair follicles.

Rogaine is proven to help slow or stop hereditary hair loss in four out of five people and for a minority of people it can even grow back lost hairs in the crown area.

Rogaine is typically applied topically on the scalp twice a day. Rogaine is not effective in the frontal hairline.