Believe it or not, Muira Pauma is also known as the “erection root.” This extract has been used by the tribes in Brazil for thousands of years, especially for its aphrodisiac qualities. In 1994, Dr. Jacques Waynberg conducted a study on 262 men suffering from this type of problem, and the results were clear. Within just two weeks of use, a whopping 62% of the men reported the extract was having “a dynamic effect.” Also, a full 51% of the men said the herb was beneficial to their libido and desire.