Grade: C

MEDIUM RISK

Nutrex Research Black Series

Item: Nutrex Research Black Series
Rating: 50
Author: SupplementChecker

Nutrex Research Black Series has a SupplementChecker.co trust score of 50/100, which is a Grade C, indicating a MEDIUM risk level. Notably, there are no third-party testing certifications on record for Nutrex Research Black Series products. Consumers should be aware of this when evaluating if Nutrex Research Black Series is a good brand for their needs.

Nutrex Research Black Series Trust Summary

Trust Score: 50/100 (Fair)
Grade: C
Risk Level: MEDIUM
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 0

Nutrex Research Black Series has a trust score of 50/100 (Fair). The brand is not third-party tested by NSF, USP, or Informed Sport, has no FDA recalls on record and no adverse event reports.

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Red Flags

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

Verified Strengths

✓Clean FDA record — no warnings, recalls, or significant adverse events

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

Clean record — no FDA warnings, recalls, or significant adverse events.

Is Nutrex Research Black Series Third-Party Tested?

No — Nutrex Research Black Series 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 Nutrex Research Black Series a Good Brand?

Nutrex Research Black Series scores 50/100 (C) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. Nutrex Research Black Series has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About Nutrex Research Black Series

Nutrex Research Black Series is a supplement brand operating in the US. The founding date is unknown. Nutrex Research Black Series operates independently and offers a range of supplements.

Product Specialization

Nutrex Research Black Series specializes in protein supplements. They offer a range of protein powders and related products.

Testing & Certifications Explained

Nutrex Research Black Series does not appear to have any third-party certifications for their products. This means that no independent organization has verified the contents, purity, or manufacturing processes of their supplements. Consumers should be aware that the absence of third-party testing means there's no independent assurance that the product contains what the label claims or is free from contaminants. This is important when considering if Nutrex Research Black Series is third-party tested.

How Nutrex Research Black Series Compares

Compared to brands like Transparent Labs (trust score 95/100) and Klean Athlete (trust score 88/100), which both utilize extensive third-party testing and certifications, Nutrex Research Black Series' trust score of 50/100 is considerably lower. Optimum Nutrition, another competitor in the protein space (trust score 72/100), also demonstrates greater transparency than Nutrex Research Black Series. This difference highlights the importance of considering certification and testing when choosing supplements.

Buying Guidance

Given the lack of third-party testing certifications and the medium risk level indicated by the Nutrex Research Black Series trust score, consumers should exercise caution. Purchase from reputable retailers and carefully examine product labels. Consider seeking out third-party tested supplements for greater assurance of product quality.

Frequently Asked Questions

Has Nutrex Research Black Series had any recalls?

No — as of 2026, Nutrex Research Black Series has zero FDA product recalls on record. They maintain a clean FDA record with no warning letters or significant adverse event reports. Nutrex Research Black Series received a trust score of 50/100 from SupplementChecker.

Are Nutrex Research Black Series supplements third-party tested?

No — Nutrex Research Black Series 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 Nutrex Research Black Series safe?

Nutrex Research Black Series received a trust score of 50/100 (grade: C, risk level: MEDIUM). 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 Nutrex Research Black Series a good brand?

Nutrex Research Black Series scores 50/100 (grade: C) — 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.

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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.

All data sourced from FDA.gov, Health Canada (LNHPD / recalls-rappels), NSF.org, USP.org, and publicly available brand information. Last updated: 4/9/2026.

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