Muira Puama, aka Croton Echioides, is a small tree native to northeastern Brazil. Muira Puama stem’s bark has been widely used for centuries for its beneficial properties and is considered an appropriate substitute for Ptychopetalum olacoides. Muira Puama Root is energetically warming and has a reputation for its relaxing qualities and as a tonic herb to help support the functioning of the reproductive system. Muira puama bark is typically prepared as a tincture. It can also be decocted as a tea or applied topically.