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Mega Tribulus Extract

Swanson Passion
4.7
★ ★ ★ ★ ★
(6448 ratings)
Tribulus 250 mg
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Score81
Extract form, named steroidal saponins, and very low serving cost make this more defined than plain powder. The saponin percentage and plant part are still missing, preventing precise potency comparison.
How scoring works
Quantity:120 Capsule(s) • (120 servings)
Goals:
Testosterone Support

Score 81

Extract form, named steroidal saponins, and very low serving cost make this more defined than plain powder. The saponin percentage and plant part are still missing, preventing precise potency comparison.
How scoring works
$10.79($0.08 per serving)
iHerb
$ 10.79
Amazon
$ 10.99
iHerb
$ 10.79
iHerb
$ 10.79
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Analysis

A tribulus extract identified with steroidal saponins supplies 250 mg of tribulus in a focused single-ingredient formula. The narrow design makes the product easy to assess and combine with an otherwise established routine.

The saponin percentage and plant part are still missing, preventing precise potency comparison. Tribulus is more plausibly viewed as a traditional vitality or libido ingredient than as a dependable way to raise testosterone in healthy adults.

The long capsule supply makes targeted use inexpensive. It fits users who specifically want tribulus and understand that a clearly labeled dose does not establish hormone effectiveness.

Who is it for
  • Adults specifically seeking a tribulus supplement
  • Users who prefer a focused single-ingredient formula
  • People with realistic expectations about testosterone support
Best for
  • Targeted tribulus intake
  • Simple daily botanical routines
  • Users exploring libido-oriented support

Pros

  • 250 mg tribulus amount is clearly stated
  • Single-ingredient formula is easy to evaluate
  • Extract form, named steroidal saponins, and very low serving cost make this more defined than plain powder

Cons

  • The saponin percentage and plant part are still missing, preventing precise potency comparison
  • Does not cover foundational nutrient or stress pathways
  • Limited evidence for raising testosterone in healthy adults

Warnings

  • Tribulus has limited evidence for raising testosterone in healthy adults and should not replace evaluation of persistent hormone-related symptoms.
  • Tribulus may affect blood pressure or glucose control, so users of antihypertensive or glucose-lowering medicine should review it with a clinician.
  • Because the saponin concentration is unknown, avoid stacking it with other tribulus products where total active exposure cannot be estimated.

Nutrient quality

73 High impact

The saponin-focused extract offers more concentration than raw powder. Missing standardization percentage and a modest amount limit potency confidence.

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Ingredient transparency

83 Highest impact

The extract amount is clear and unblended. Complete directions, inactive ingredients, plant part, and saponin percentage remain missing.

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Customer satisfaction

73 High impact

The supplied average is very strong and backed by very large volume. No review themes were provided, so consistency and purpose-specific experience cannot be assessed.

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Value for money

96 Highest impact

A very low serving cost and focused extract support strong value. Incomplete standardization is the main limitation rather than price or padding.

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Report analysis

Goals

Testosterone Support
Impact
Moderate effect
C- Goal FitC- Strength of SupportD CoverageA Formula Quality

Tribulus provides a relevant route to testosterone support. Dose or form uncertainty limits confidence in the practical contribution.

The formula remains narrow rather than comprehensive. Mega Tribulus Extract is best viewed as targeted support rather than proof of a clinical benefit.

Study evidence
Tribulus Disputed 13 studies

Ingredients

IngredientAmount per serving
Tribulus terrestris extract (Steroidal Saponins)
250 mg
Adults 18–50
Report overview
D- Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyB+ Value

The extract identifies steroidal saponins but does not disclose their percentage or the plant part. Its 250 mg amount reaches the collection median and is individually listed. Very low serving cost supports value, while incomplete standardization detail limits certainty about potency.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Effects of Tribulus (Tribulus terrestris L.) Supplementation on Erectile Dysfunction and Testosterone Levels in Men-A Systematic Review of Clinical Trials.
    Vilar Neto JO; de Moraes WMAM; Pinto DV; da Silva CA; Caminha JSR; Nunes Filho JCC; Reis CEG; Prestes J; Santos HO; De Francesco Daher E · Nutrients · 2025
    Systematic review483 participants10 studies pooledTestosterone Support forTribulus
  2. Tribulus terrestris versus placebo in the treatment of erectile dysfunction: A prospective, randomized, double blind study.
    Santos CA; Reis LO; Destro-Saade R; Luiza-Reis A; Fregonesi A · Actas urologicas espanolas · 2015
    Randomized trial30 participantsTestosterone Support forTribulus
  3. The aphrodisiac herb Tribulus terrestris does not influence the androgen production in young men.
    Neychev VK; Mitev VI · Journal of ethnopharmacology · 2005
    Randomized trial21 participantsTestosterone Support forTribulus
  4. Efficacy of Tribulus Terrestris for the treatment of premenopausal women with hypoactive sexual desire disorder: a randomized double-blinded, placebo-controlled trial.
    Vale FBC; Zanolla Dias de Souza K; Rezende CR; Geber S · Gynecological endocrinology : the official journal of the International Society of Gynecological Endocrinology · 2018
    Randomized trial40 participantsTestosterone Support forTribulus
  5. Do "testosterone boosters" really increase serum total testosterone? A systematic review.
    Morgado A; Tsampoukas G; Sokolakis I; Schoentgen N; Urkmez A; Sarikaya S · International journal of impotence research · 2024
    Systematic review3 studies pooledTestosterone Support forTribulus
  6. The Effects of 6 Weeks of Tribulus terrestris L. Supplementation on Body Composition, Hormonal Response, Perceived Exertion, and CrossFit® Performance: A Randomized, Single-Blind, Placebo-Controlled Study.
    Fernández-Lázaro D; Mielgo-Ayuso J; Del Valle Soto M; Adams DP; González-Bernal JJ; Seco-Calvo J · Nutrients · 2021
    Randomized trial30 participantsTestosterone Support forTribulus
  7. The effect of five weeks of Tribulus terrestris supplementation on muscle strength and body composition during preseason training in elite rugby league players.
    Rogerson S; Riches CJ; Jennings C; Weatherby RP; Meir RA; Marshall-Gradisnik SM · Journal of strength and conditioning research · 2007
    Randomized trial22 participantsTestosterone Support forTribulus
  8. Beyond tribulus (Tribulus terrestris L.): The effects of phytotherapics on testosterone, sperm and prostate parameters.
    Santos HO; Howell S; Teixeira FJ · Journal of ethnopharmacology · 2019
    Narrative reviewTestosterone Support forTribulus
  9. Prospective Analysis on the Effect of Botanical Medicine (Tribulus terrestris) on Serum Testosterone Level and Semen Parameters in Males with Unexplained Infertility.
    Roaiah MF; Elkhayat YI; Abd El Salam MA; Din SFG · Journal of dietary supplements · 2019
    Single-arm trial30 participantsTestosterone Support forTribulus
  10. Pilot Study on the Effect of Botanical Medicine (Tribulus terrestris) on Serum Testosterone Level and Erectile Function in Aging Males With Partial Androgen Deficiency (PADAM).
    Roaiah MF; El Khayat YI; GamalEl Din SF; Abd El Salam MA · Journal of sex & marital therapy · 2017
    Single-arm trial30 participantsTestosterone Support forTribulus
  11. Tribulus terrestris versus placebo in the treatment of erectile dysfunction and lower urinary tract symptoms in patients with late-onset hypogonadism: A placebo-controlled study.
    GamalEl Din SF; Abdel Salam MA; Mohamed MS; Ahmed AR; Motawaa AT; Saadeldin OA; Elnabarway RR · Urologia · 2019
    Randomized trial70 participantsTestosterone Support forTribulus
  12. Efficacy of Tribulus terrestris for the treatment of hypoactive sexual desire disorder in postmenopausal women: a randomized, double-blinded, placebo-controlled trial.
    de Souza KZ; Vale FB; Geber S · Menopause (New York, N.Y.) · 2018
    Randomized trial45 participantsTestosterone Support forTribulus
  13. Effect of oral administration of Tribulus terrestris extract on semen quality and body fat index of infertile men.
    Salgado RM; Marques-Silva MH; Gonçalves E; Mathias AC; Aguiar JG; Wolff P · Andrologia · 2018
    Single-arm trial65 participantsTestosterone Support forTribulus