An extract made from the bark of a Prunus africana tree, Pygeum is a supplement native to Africa. Pygeum is used for treating symptoms of enlarged prostate. It may also help with urinary problems, such as poor urine flow and night time urination. Pygeum increases prostatic and seminal fluid secretions. It may also be useful in the treatment of some kidney diseases as well as fever and malaria. Pygeum is known to support healthy levels of testosterone, though it only works well in conjunction with a stable diet.