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Do Testosterone Booster Supplements Work? The Evidence
Do testosterone booster supplements work? The evidence is weak. Tribulus trials show mixed results and unproven testosterone gains, and ashwagandha evidence for male sexual function is thin. Low testosterone is diagnosed with repeated morning blood tests, not with a supplement (Vilar Neto 2025, tribulus review).
Written by the Stallion Power label deskUpdated · 5 min read
The short answer01
Do testosterone booster supplements actually work?
Mostly the proof is missing. Reviews of the herbs found in these products show mixed results, small studies or lab-only data.
A 2025 review of tribulus found erection evidence was low and testosterone gains were unproven (Vilar Neto 2025, tribulus review). MSKCC reports mixed results too (MSKCC, Tribulus terrestris). For ashwagandha, trials look better for stress and sleep than for male sexual function (NCCIH, Ashwagandha).
A review of erection supplements also found most blends use negligible doses (Petre 2023, ED supplements review).
Dose check02
How much of each ingredient did the trials use?
Trials used doses in hundreds of milligrams or grams. One Stallion Power gummy holds a whole blend of 82 mg.
Tribulus trials used 400 to 750 mg a day (Vilar Neto 2025, tribulus review). Ashwagandha trials used 240 to 1,250 mg of extract a day (NIH ODS, Ashwagandha). L-arginine trials used 1,500 to 5,000 mg a day (Rhim 2019, arginine and ED meta-analysis).
By our arithmetic from the label order, not a lab test, each of those three weighs 5 mg or less in a gummy. The bars show the gap.
Why a test first03
Why should you test before taking a booster?
Because you may not have low testosterone at all. Tiredness and low drive have many causes, and only repeated morning blood tests show a level (AUA, Testosterone deficiency guideline).
The Endocrine Society says testosterone therapy needs clinician monitoring (Endocrine Society 2018, testosterone therapy guideline). A supplement that claims to raise levels can delay a check for sleep apnea, depression, diabetes or heart trouble. Read our guide to testosterone and supplements.
| Ingredient | Testosterone evidence |
|---|---|
| Tribulus | Mixed; gains unproven (Vilar Neto 2025, tribulus review) |
| Ashwagandha | Stronger for stress and sleep; thin for male sexual function (NCCIH, Ashwagandha) |
| Maca | Limited, a few small trials (MSKCC, Maca) |
| Muira puama, catuaba | No human trial found (Brunetti 2020, herbal sexual enhancers (muira puama)) (Kletter 2004, catuaba products analysis) |
Stallion Power: from $49 a bottle30 gummies · 2, 3 or 6 bottles · free shipping on 3 or 6 · 60-day guarantee
See packsThis gummy04
Is Stallion Power a testosterone booster?
No. The label does not call it one, and it is not testosterone. It makes no promise about hormone levels.
The front says "Boost Performance†" and "Support Confidence†". These are label claims, marked with a dagger that points to the FDA statement. No trial has tested the gummy. Read the benefits page to see each claim set beside the evidence.
Safety05
What should you know before trying any booster?
Ask your doctor first, especially if you take medicines, are pregnant or nursing, or have thyroid or liver problems (NCCIH, Ashwagandha).
Ashwagandha has rare liver injury reports, with onset in weeks (LiverTox, Ashwagandha). Keep taking prescribed medicine unless your doctor says otherwise (FDA, Mixing medications and supplements).
Want to try Stallion Power? Both packs ship free, and both come with the 60-day guarantee (all bottles returned, even empty ones).
Prices on the sales page, October 18, 2026 (Stallion Power sales page). Check your medicines with your doctor first.
FAQ06
Questions about booster supplements
Can tribulus raise testosterone?
Evidence does not show it reliably. A 2025 review found testosterone gains unproven and erection evidence low, and MSKCC describes mixed results (Vilar Neto 2025, tribulus review) (MSKCC, Tribulus terrestris). Rare case reports include kidney, liver and priapism problems.
Is ashwagandha a proven testosterone supplement?
No. NCCIH says it may help stress and sleep, and the evidence for male sexual function is thin (NCCIH, Ashwagandha). It is not advised in pregnancy, thyroid disease or liver problems.
What is a normal testosterone level?
That is a question for your doctor, because ranges differ between labs and a diagnosis needs repeated early-morning tests with symptoms (AUA, Testosterone deficiency guideline). We do not print a number.
Do booster labels list real amounts?
Often not. A proprietary blend lists parts by weight order only, not single amounts (21 CFR 101.36 (proprietary blends)). That makes it hard to compare a gummy's dose with the doses trials used.
Who wrote this07
Written and reviewed by
Pages built from the label, the sales page and linked NIH, FDA, CDC, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by Stallionpowermen, a USA stocking retailer for Stallion Power, not by the manufacturer or the distributor. We are paid a commission when you buy through our order links.
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