Minoxidil is a drug available in two forms to treat different conditions. Oral minoxidil is used to treat high blood pressure and the topical solution form is used to treat hair loss and baldness.

The discovery of its effects on hair loss and regrowth came about with the treatment of high blood pressure and its side effect, which is the reversal of male baldness. Since then, it has been the typical ingredient included in many hair loss treatments in the market today, even though the exact mechanism of this drug is unknown. Its popularity increased because of the astonishing results of thicker and fuller appearance of the newly grown hair.