Grade: C

MEDIUM RISK

Thorne FX

Item: Thorne FX
Rating: 50
Author: SupplementChecker

Thorne FX has a Trust Score of 50/100, which is a Grade C, indicating a MEDIUM risk level. No third-party testing certifications were found for Thorne FX products. This means it's difficult for consumers to independently verify the quality and purity of Thorne FX supplements.

Thorne FX Trust Summary

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

Thorne FX 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 Thorne FX Third-Party Tested?

No — Thorne FX 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 Thorne FX a Good Brand?

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

About Thorne FX

Thorne FX is a US-based supplement brand operating independently. The company's founding date is unknown. They offer a range of supplements across various categories. Thorne FX aims to provide nutritional support through its product line.

Product Specialization

Thorne FX offers products in several categories including vitamins, minerals, protein, and fish oil. They provide a range of supplements, from multivitamins to specialized mineral formulas. Consumers often search for Thorne FX reviews related to their protein and fish oil products.

Testing & Certifications Explained

Thorne FX does not have any third-party testing certifications on record. This means that independent organizations are not verifying the quality, purity, or potency of their supplements. Third-party certifications provide an extra layer of assurance for consumers, confirming that products meet specific standards and are free from contaminants. The absence of such certifications means consumers must rely solely on the brand's own claims, making it more difficult to assess product quality. Consumers wondering "is Thorne FX third-party tested?" should be aware of this.

How Thorne FX Compares

Compared to brands like Klean Athlete (Trust Score 85) and NOW Foods (Trust Score 78), Thorne FX's Trust Score is lower, primarily due to the absence of third-party certifications. These competitors often invest in certifications like NSF or USP, providing greater assurance to consumers. While some brands like Thorne FX may focus on specific formulations, others prioritize independent verification to build consumer trust.

Buying Guidance

Given Thorne FX's Trust Score and lack of third-party certifications, consumers should exercise caution. Purchase directly from Thorne FX or authorized retailers to ensure product authenticity. Carefully review product labels and consult with a healthcare professional before using any supplements.

Frequently Asked Questions

Has Thorne FX had any recalls?

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

Are Thorne FX supplements third-party tested?

No — Thorne FX 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 Thorne FX safe?

Thorne FX 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 Thorne FX a good brand?

Thorne FX 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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