Saw palmetto or Serenoa repens is a very well-researched botanical with a rich history of use treating sexual problems in men, such as loss of libido and impotence. It is clear from scientific data that this herb can help improve erectile function, along with mild to moderate cases of enlarged prostate.
Low testosterone levels are associated with low libido in both men and women. Saw palmetto may boost libido by stopping the breakdown of testosterone in the body.