Muira Puama - Although this Amazonian tree is widely believed in South America to restore libido, Gagnon says exactly how it works is a mystery. Duke cites a study wherein 51 percent of those with erection problems reported improvement after taking muira puama extract for two weeks, as did 62 percent of those with loss of libido. Yohimbe - This African tree bark is reputed to enhance erections for both those with psychological and physical impotence. Compared to the raw herb, there are fewer side effects. It should be noted that both Duke and Gagnon recommend against the use of yohimbe in its whole herb form.
Human studies supporting ginseng's claim to be a sexual rejuvenator are scanty as yet.
Finally, Gagnon emphasizes that the health of the whole body is the best aphrodisiac of all. He recommends eating plenty of fruits and vegetables, exercise, deep breathing and adequate rest. Jerilynn Blum is an Idaho-based freelance writer and art therapist whose focus is natural health and alternative healing modalities.