In humans, a 90 - day research study in men with erectile dysfunction showed that tribulus supplementation increased qualitative reports of sexual health, quantitatively testosterone was increased by 16 % (11). (healthtrends.com)
Although most men with erectile dysfunction do not complain of decreased libido, after time, persistent failure with erections and sexual performance can lead to reduced sex drive in some men. (hormone.org)
It has also been shown to increase DHEA and therefore helping men with erectile dysfunction. (increasetestosterone.review)