Grade: C

MEDIUM RISK

Nutrex Research Natural Series

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

The Nutrex Research Natural Series trust score is 50/100, which translates to a grade of C and a MEDIUM risk level. Notably, there are no third-party testing certifications on record for Nutrex Research Natural Series products. Consumers wondering "is Nutrex Research Natural Series a good brand" should consider this lack of independent verification.

Nutrex Research Natural 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 Natural 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 Natural Series Third-Party Tested?

No — Nutrex Research Natural 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 Natural Series a Good Brand?

Nutrex Research Natural 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 Natural Series has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About Nutrex Research Natural Series

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

Product Specialization

Nutrex Research Natural Series specializes in specialty supplements. Specific product types are not specified in the available data.

Testing & Certifications Explained

Nutrex Research Natural Series does not have any third-party certifications on record. This means that no independent organization has verified the quality, purity, or potency of their products. Consumers should be aware that the absence of third-party testing means there is no independent confirmation that the ingredients listed on the label are accurate or that the product is free from contaminants. Consumers often search "is Nutrex Research Natural Series third-party tested" to confirm product quality, and in this case, the answer is no.

How Nutrex Research Natural Series Compares

Compared to other brands in the specialty supplement category, Nutrex Research Natural Series' trust score of 50/100 is relatively low. For example, a brand like Klean Athlete (trust score 85/100) has NSF Certified for Sport certification, indicating a higher level of independent testing. Another competitor, Garden of Life (trust score 75/100), has certifications such as USDA Organic and Non-GMO Project Verified. Consumers should compare "Nutrex Research Natural Series reviews" with those of competitors.

Buying Guidance

Given the Nutrex Research Natural Series trust score and lack of third-party testing, consumers should exercise caution when purchasing their products. Purchase from reputable retailers and carefully examine product labels. Consumers should be aware that there is no "Nutrex Research Natural Series recall" currently.

Frequently Asked Questions

Has Nutrex Research Natural Series had any recalls?

No — as of 2026, Nutrex Research Natural 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 Natural Series received a trust score of 50/100 from SupplementChecker.

Are Nutrex Research Natural Series supplements third-party tested?

No — Nutrex Research Natural 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 Natural Series safe?

Nutrex Research Natural 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 Natural Series a good brand?

Nutrex Research Natural 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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