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GLP-1 receptor agonist

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Testofen (fenugreek), Boron, Zinc, Vitamin B12
| # | Product | Active ingredient | Starting price | FDA status | Score | |
|---|---|---|---|---|---|---|
| 1 | TestoFuel | — | Best ·$59/mo | supplement | Top ·6.9 | See offer → |
| 2 | Nugenix Total-T | Testofen (fenugreek), Boron, Zinc, Vitamin B12 | $70/mo | supplement | 6.8 | See offer → |
TestoFuel doesn't add testosterone; it supplies the raw materials and signals involved in making it. D-aspartic acid is an amino acid linked to luteinizing-hormone release; vitamin D, zinc, and magnesium are cofactors the body needs for normal testosterone synthesis. The logic is repletion — correcting shortfalls so the hormonal machinery runs normally — which is why benefits are most plausible when you're deficient to begin with.
Total-T is a daily capsule blend that aims to nudge your body's own testosterone rather than supply any hormone. Boron (10 mg) may raise free, usable testosterone mainly by lowering sex-hormone-binding-globulin (SHBG), the protein that binds testosterone and keeps it inactive; a small 2011 study found 10 mg/day for one week lowered SHBG and estradiol and raised free testosterone, though it was tiny (8 men) and needs larger replication. Tesnor (a branded pomegranate-peel and cocoa-seed extract, 400 mg) has small manufacturer-linked trials suggesting modest free-testosterone or strength changes. The formula also includes Eurycoma longifolia (100 mg), L-citrulline malate (1,125 mg, which targets nitric oxide and blood flow), plus zinc, vitamin B6, and B12, which support normal hormone and energy metabolism. It contains no testosterone, steroids, or other hormones. Note Total-T does not contain fenugreek; that is the basis of the separate original Nugenix Free Testosterone product.
The strongest evidence behind TestoFuel's formula is for correcting deficiencies: meta-analyses suggest vitamin D supplementation can modestly raise total testosterone, and zinc supplementation raises testosterone in zinc-deficient men. Evidence for D-aspartic acid is mixed — some short studies show a transient rise, others show no effect, especially in trained men. Overall, expect modest, deficiency-dependent support rather than a clinically meaningful T increase.
Evidence is mixed and modest, and it rests on individual ingredients rather than the finished product. Boron at 10 mg has small short-term data suggesting it can raise free testosterone by lowering SHBG, but the key study was tiny (8 men, 7 days). The branded Tesnor extract (400 mg) has small, manufacturer-linked trials reporting free-testosterone and grip-strength changes. A 2023 systematic review in the International Journal of Impotence Research examined 27 proposed boosters (including Eurycoma longifolia, an ingredient in Total-T) and found inconsistent, mostly weak evidence that they raise serum total testosterone. A 2020 World Journal of Men's Health analysis of 50 'T-boosters' found 90% claimed to raise testosterone but only about 24.8% had supporting data, and roughly 10% contained ingredients shown to lower it. For context on related plant extracts, a 2024 PLOS One RCT of fenugreek (an ingredient not in Total-T) found a significant free-testosterone-index rise only at 1,800 mg and a saliva-testosterone increase versus placebo, while plasma total testosterone did not rise significantly versus placebo. No independent trial proves Total-T's specific full formula raises testosterone.
Generally well tolerated. Occasional mild GI upset, a fishy aftertaste from oyster extract, or headache are possible. Shellfish-allergic individuals should avoid it due to oyster-derived ingredients. This is educational information, not medical advice; supplements are not FDA-evaluated to treat any condition.
Most users tolerate it well; the most common complaints are mild gastrointestinal upset, nausea, or a 'stomach burn,' especially early on or when taken on an empty stomach. Because the 10 mg boron is half the 20 mg adult tolerable upper intake level, stacking it with high-boron foods or other supplements could push intake higher and contribute to nausea or headache, with kidney strain reported only at far higher intakes. Theoretical hormone shifts mean men with prostate or other hormone-sensitive conditions should be cautious. Stop and seek care if you notice rash, swelling, trouble breathing, chest symptoms, or other signs of an allergic reaction. Dietary supplements are not reviewed by the FDA for safety or efficacy before they are sold.
As of 2026, a single box (120 capsules, about one month at 4 capsules/day) runs roughly $65 from the official site, the only authorized seller. Multi-box bundles such as buy-three-get-two-free cut the effective per-box price and include free shipping but require more upfront. Not insurance-eligible.
As of 2026, expect roughly $60-$70 for a 30-day (90-capsule) bottle at full price from GNC, Amazon, or Nugenix.com (GNC commonly lists it around $69.99), working out to about $2.00-$2.50 per day. Nugenix heavily promotes a 'free trial' or 'complimentary bottle' (you pay shipping) that auto-enrolls you into recurring monthly billing of about $69.99 plus shipping; this practice has drawn hundreds of consumer complaints, so read the autoship terms and cancel before the trial ends if you do not want it. Multi-bottle bundles and subscriptions lower the per-bottle cost. Insurance and HSA/FSA generally do not cover dietary supplements.
Healthy adult men who want OTC support for natural testosterone, particularly those who may be low in vitamin D, zinc, or magnesium. Not a treatment for diagnosed hypogonadism. Men with medical conditions or on medication should check with a clinician, and those with shellfish allergies should note the oyster extract.
Aimed at adult men (often marketed to those 40+) with normal-but-declining testosterone who want general support for energy, libido, strength, or workout performance. It is not for women, anyone under 18, or men seeking treatment for diagnosed hypogonadism. Avoid or consult a doctor first if you have kidney disease, hormone-sensitive cancer (e.g., prostate), or if you take blood-pressure, blood-thinner, or diabetes medication, or are on prescription testosterone. The 10 mg boron is half the 20 mg adult daily tolerable upper intake level, so account for boron from diet and any other supplements.
Nugenix Total-T: Nugenix Total-T is an over-the-counter testosterone-support supplement, not a hormone or drug. A couple of its ingredients (boron and the branded Tesnor extract) are dosed in line with their cited research, but several others are underdosed, and large independent reviews find most 'T-boosters' lack proof that they meaningfully raise serum testosterone. It can be reasonable to trial for mild symptoms, but see a doctor and get a blood test for suspected true low testosterone. Both are strong options — match the pick to your specific needs, budget, and clinician's guidance.
Editorial comparison, not medical advice. Discuss options with a qualified clinician. Individual results vary.