Aminexil is a chemical compound similar to Minoxidil which acts by prolonging the anagen or follicular growth phase. It increases the blood flow and therefore the supply of oxygen and nutrients to the hair follicle. In this way the follicles in the telogen or resting phase fall out leaving space to start the anagen phase. It also acts by rejuvenating and strengthening the hair follicles, allowing the growth of thicker and healthier hair. It prolongs the life cycle of the hair.