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Head-to-head evidence comparison — which supplement is right for you?
HCG (Human Chorionic Gonadotropin) vs Tribulus: they're closely matched on evidence (5.5 vs 5.5/10); they're alternatives for fertility support — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
HCG (Human Chorionic Gonadotropin) and Tribulus are closely matched across evidence, studies, and safety.
Verdict
Too few graded studies
Top outcomes
Verdict
Likely helps
3 of 3 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (2)
Outcomes where both HCG (Human Chorionic Gonadotropin) and Tribulus have evidence — compare verdict strength side-by-side.
Prescription-only and indication-dependent. For intratesticular-testosterone maintenance on TRT, the cited studies used 125-500 IU every other day (intramuscular in the one that states the route). For spermatogenesis induction in hypogonadotropic hypogonadism, typically ~1,000-2,500 IU two to three times weekly (often combined with FSH), titrated to response. For female ovulation/oocyte-maturation trigger, a single dose (~5,000-10,000 IU urinary or 250 µg recombinant). No cited study gives these two doses. No dietary-supplement dose exists.
Any time of day
Prescription hCG — recombinant (choriogonadotropin alfa) or urinary-derived, by injection
250-750mg daily (standardized to 45-60% saponins)
With meals, Morning or divided doses
Extract standardized to 45-60% saponins (protodioscin)
and 1 more not shown
Weeks
Months
Months
Within ~36 hours
2-4 weeks
4-8 weeks
N/A
Low-dose human chorionic gonadotropin maintains intratesticular testosterone in normal men with testosterone-induced gonadotropin suppression.
J Clin Endocrinol Metab (2005) · Rct · n=29
29 men with normal reproductive physiology randomized to weekly testosterone enanthate plus saline placebo or 125, 250, or 500 IU hCG every other day for 3 weeks
Concomitant intramuscular human chorionic gonadotropin preserves spermatogenesis in men undergoing testosterone replacement therapy.
J Urol (2013) · Observational · n=26
Retrospective cohort of 26 hypogonadal men on testosterone replacement plus 500 IU intramuscular hCG every other day, mean follow-up 6.2 months
A combined analysis of data to identify predictive factors for spermatogenesis in men with hypogonadotropic hypogonadism treated with recombinant human follicle-stimulating hormone and human chorionic gonadotropin.
Fertil Steril (2009) · Observational · n=100
Combined analysis of four Phase III open-label studies in 100 men with complete idiopathic or acquired hypogonadotropic hypogonadism, pretreated with hCG for 3-6 months then hCG plus recombinant FSH
Effects of Tribulus (Tribulus terrestris L.) Supplementation on Erectile Dysfunction and Testosterone Levels in Men-A Systematic Review of Clinical Trials
Nutrients (2025) · Systematic review · n=483
10 studies (9 clinical trials and 1 study without a control) with 483 men in total, aged 16 to 70.
Dietary Supplements for Erectile Dysfunction: Analysis of Marketed Products, Systematic Review, Meta-Analysis and Rational Use
Nutrients (2023) · Meta analysis
Based on the scoring system, 2 (8%) supplements matched with the cluster of higher expected efficacy, 3 (12%) with the lower efficacy cluster and 20 (80%) matched with the criterion of no expected efficacy.
Beneficial effects of natural products on female sexual dysfunction: A systematic review and meta-analysis
Phytomedicine : international journal of phytotherapy and phytopharmacology (2021) · Meta analysis
536 studies were identified and 20 met the criteria. The abstract gives no participant total.
Both HCG (Human Chorionic Gonadotropin) and Tribulus are closely matched — the best choice depends on your specific health goals.
For fertility support, Tribulus has a higher relevance score (80 vs 62).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.