Muirapuama is a bush or small tree that grows up to 5 meters high and is native to the Brazilian Amazon and other pars of Northern Brazil. Historically, all parts of the plant were utilized, but it is the bark and root that is used in modern preparations.
Scientists began searching for the active components in the root and bark of Muirapuama to determine the reasons for its efficacy in the 1920s. Early researchers discovered that the root and bark were rich in free fatty acids, essential oils, plant sterols and a new alkaloid, which they named Muirapuamine.
This herb has been used by both men and women with low libido. In one trial by Dr Jacques Waynberg of 2000 men, all with erectile problems, 63 per cent reported a significant improvement, with no side effects.
