Grade: D

HIGH RISK

ExtenZe

Item: ExtenZe
Rating: 40
Author: SupplementChecker

Last reviewed: April 14, 2026

ExtenZe has a SupplementChecker.co trust score of 50/100, which translates to a grade of C and a MEDIUM risk level. Notably, no third-party testing certifications were found for ExtenZe products. Consumers should consider this when evaluating if ExtenZe is a good brand for their needs.

ExtenZe Trust Summary

Trust Score: 40/100 (Below Average)
Grade: D
Risk Level: HIGH
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 14

ExtenZe has a trust score of 40/100 (Below Average). The brand is not third-party tested by NSF, USP, or Informed Sport, has no FDA recalls on record and 14 adverse event reports.

Where to Buy ExtenZe

Purchase from trusted retailers. We may earn a commission at no extra cost to you.

Buy on Amazon Buy on Herbspro Buy on iHerb

Check another brand:

e.g. Nature Made, Thorne, NOW Foods...

Check

Red Flags

⚠No third-party testing certifications found
⚠No GMP certification visible

Certifications

No certifications on record. This brand has not demonstrated GMP compliance or third-party testing verification.

FDA Record

FDA Warning Letters

Recalls

Adverse Reports

Is ExtenZe Third-Party Tested?

No — ExtenZe is not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. No GMP certification was found on record either. We recommend looking for brands with verified third-party testing for the highest confidence in product quality. See our guide to third-party tested supplements.

Is ExtenZe a Good Brand?

ExtenZe scores 40/100 (D) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. ExtenZe has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About ExtenZe

ExtenZe is a specialty supplement brand operating independently in the US. The founding date of ExtenZe is unknown. They offer products in the specialty supplement category.

Product Specialization

ExtenZe specializes in products in the specialty supplement category. They are known for products designed for male enhancement.

How ExtenZe Compares

Compared to competitors in the specialty supplement space, ExtenZe's trust score of 50/100 is lower than brands that undergo rigorous third-party testing. For example, brands like Transparent Labs (trust score 92) and Klean Athlete (trust score 88) prioritize certifications from organizations like NSF and Informed Sport. Consumers should compare ExtenZe reviews and certifications against these higher-rated brands.

Testing & Certifications Explained

ExtenZe does not appear to have any third-party testing certifications. This means that independent organizations have not verified the quality, purity, or potency of ExtenZe's ingredients or final products. Consumers seeking third-party tested supplements should be aware of this lack of independent verification.

Buying Guidance

Given ExtenZe's trust score and lack of third-party testing, consumers should exercise caution. Purchase ExtenZe products from reputable retailers and carefully review the ingredient list and any available information. Consumers wondering "is ExtenZe third-party tested" should be aware that no certifications were found.

Frequently Asked Questions

Has ExtenZe had any recalls?

No — as of 2026, ExtenZe has zero FDA product recalls on record. ExtenZe received a trust score of 40/100 from SupplementChecker.

Are ExtenZe supplements third-party tested?

No — ExtenZe supplements are not currently third-party tested by independent certifiers like NSF, USP, or Informed Sport. No independent testing or GMP certification was found on record.

Is ExtenZe safe?

ExtenZe received a trust score of 40/100 (grade: D, risk level: HIGH). This score is calculated from FDA records, third-party certifications, adverse event reports, and transparency practices. No FDA warnings or recalls are on record.

Is ExtenZe a good brand?

ExtenZe scores 40/100 (grade: D) — this is below average. We recommend looking for brands with third-party certifications like NSF or USP. They do not currently hold third-party testing certifications like NSF, USP, or Informed Sport. No FDA warnings or recalls found.

Get FDA Recall Alerts

We'll notify you when FDA recalls affect supplement brands you care about.

Compare Similar Brands

Brands in similar categories with comparable trust profiles. Compare certifications, scores, and safety records.

55/100

Lower rated

Persona Nutrition

Grade C • Higher score

55/100

Lower rated

Spectrum Essentials

Grade C • Higher score

55/100

Lower rated

Feel

Grade C • Higher score

55/100

Lower rated

Golde

Grade C • Higher score

55/100

NSF

Lower rated

EST

Grade C • Higher score

Want more comparisons? Browse our supplement categories or check our buying guides.

How We Calculated This Score

Every brand starts with a baseline score of 70/100.

Points added for: Third-party certifications (NSF +15, USP +15, Informed Sport +10), publishing lab results (+10), clean regulatory record (+10), 10+ years in business (+10), organic certification (+5).

Points deducted for: FDA warning letters (-25), product recalls (-20), high adverse events (-15), no third-party testing (-15), proprietary blends (-10), no GMP (-10).

Score is capped at 0-100. Grade and risk level are derived from the final score.

See our full scoring methodology and data sources for how each signal is measured.

All data sourced from FDA.gov, Health Canada (LNHPD / recalls-rappels), NSF.org, USP.org, and publicly available brand information. Last updated: 5/1/2026.

Promote Your Trust Score

Embed this badge on your site — it displays ExtenZe's verified trust score and links back to this profile page. Helps show buyers you're transparent about third-party testing.

Small · 220×110

<iframe src="https://supplementchecker.co/embed/extenze/" width="220" height="110" frameborder="0" loading="lazy" title="ExtenZe trust score by SupplementChecker"></iframe>

Medium · 320×160

<iframe src="https://supplementchecker.co/embed/extenze/" width="320" height="160" frameborder="0" loading="lazy" title="ExtenZe trust score by SupplementChecker"></iframe>

Large · 420×210

<iframe src="https://supplementchecker.co/embed/extenze/" width="420" height="210" frameborder="0" loading="lazy" title="ExtenZe trust score by SupplementChecker"></iframe>

Paste the snippet anywhere on your site. The badge updates automatically when ExtenZe's trust score changes.

Own this brand? Contact us to update your information.

Want to find supplements you can trust?

Third-party testing is the single best indicator of supplement quality. We analyzed ExtenZe and 500+ other brands to find the ones that actually prove what's on the label.

See the best third-party tested supplements →