Tribulus Terrestris and Horny Goat Weed: The Honest Picture

Long Traditional Use, Mixed Modern Evidence

Both Tribulus Terrestris and Horny Goat Weed have long histories of traditional use in male wellness categories, across Ayurvedic, Eastern European and Chinese herbal traditions.

What the NCCIH Says About Tribulus Terrestris

The National Center for Complementary and Integrative Health notes that human trial evidence for Tribulus Terrestris's effect on testosterone levels has been inconsistent, with some studies finding no significant effect compared to placebo.

What the NCCIH Says About Horny Goat Weed

The NCCIH notes that research on Horny Goat Weed for male health applications is primarily preclinical — the most-cited work is in animal and cell models, with limited high-quality human clinical trial data.

Why They're Still Included

Despite the mixed evidence, both ingredients are included as part of a broader multi-ingredient formulation based on their traditional use context, alongside more strongly evidenced ingredients like Zinc and L-Arginine HCL.

Bottom Line

Tribulus Terrestris and Horny Goat Weed in Virilix should be understood as traditional, supportive additions rather than proven active agents on their own.

See the full Virilix ingredients breakdown, learn how Virilix works, or read verified Virilix reviews for more context.