Ayurceutics Tribulus. Description: Tribulus, a herbal supplement for sexual function. Tribulus terrestris is used in the Indian Ayurvedic tradition as a Rasayana, a dietary supplement or practice promoting rejuvenation, mental and physical health, as well as providing a defense against aging and challenging environmental factors. Tribulus is traditionally regarded as a sexual rejuvenator, for general fatigue and for healthy urinary tract function. Placebo-controlled clinical trials of Tribulus in men with sexual performance concerns found improvements in libido and frequency of sexual intercourse. Laboratory studies support the traditional use of Tribulus for male sexual function and for kidney and urinary tract health. Free Of Soy, wheat and gluten free. Disclaimer: These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.