Hair loss minoxidil is a topical medication used to treat hair loss. It is a vasodilator, which means it widens blood vessels. This increased blood flow to the hair follicles can stimulate hair growth.
Minoxidil was first developed in the 1950s as a treatment for high blood pressure. It was not until the 1980s that it was discovered to be effective in treating hair loss. Minoxidil is now one of the most popular hair loss treatments available.