Minoxidil is an FDA-approved drug primarily used to treat hair loss. Minoxidil works by widening blood vessels and increasing blood flow to stimulate hair growth, resulting in faster initiation and prolonged length of the growth phase of hair follicles. Minoxidil chewable tablets (Grow by MangoRx) contain 2.5mg of Minoxidil. Source: NationalLibraryOfMedicine.gov,  MayoClinic.org