Evidence Level
Tribulus Terrestris is a herbal supplement commonly associated with sexual health and hormonal regulation. However, its effects on testosterone levels remain unsupported by robust clinical evidence. A systematic review by Qureshi et al. (2014) analyzed multiple randomized controlled trials (RCTs) and found no significant increase in testosterone levels among healthy males after supplementation. Similarly, Rogerson et al. (2007) conducted a 5-week RCT with elite rugby players and reported no changes in testosterone, dihydrotestosterone (DHT), or androgen ratios.
Despite these findings, Tribulus Terrestris has shown potential benefits for sexual health through non-androgenic mechanisms. Kamenov et al. (2017) conducted a 12-week RCT with a dosage of 750mg daily and observed significant improvements in sexual desire and satisfaction among both men and women, suggesting involvement of nitric oxide or dopamine systems. Furthermore, Suharyani et al. (2026) performed a systematic review and meta-analysis of eight RCTs involving 514 participants and found that Tribulus Terrestris significantly improved erectile function, as measured by IIEF-5 and IIEF-15 scores, without notable adverse events.
While Tribulus Terrestris may offer support for libido and erectile function, it should not be relied upon as a "testosterone booster" due to the lack of evidence supporting such claims. It is generally considered safe and may provide genuine benefits for sexual health through mechanisms independent of hormonal changes.