Grade: C

MEDIUM RISK

Thorne Research

Item: Thorne Research
Rating: 50
Author: SupplementChecker

Thorne Research has a SupplementChecker.co trust score of 50/100, which is a Grade C, indicating a MEDIUM risk level. No third-party testing certifications were found during our review. Consumers should be aware of this when evaluating if Thorne Research is a good brand for their needs.

Thorne Research Trust Summary

Trust Score: 50/100 (Fair)
Grade: C
Risk Level: MEDIUM
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 1

Thorne Research 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 1 adverse event report.

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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

Is Thorne Research Third-Party Tested?

No — Thorne Research 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 Research a Good Brand?

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

About Thorne Research

Thorne Research is a US-based supplement company operating independently. The company's founding date is unknown. They offer a range of dietary supplements and cater to health-conscious consumers.

Product Specialization

Thorne Research offers products across several categories, including vitamins, minerals, herbal supplements, protein powders, and fish oil. They are known for their focus on high-quality ingredients and formulations within these categories.

Testing & Certifications Explained

Thorne Research does not appear to have any third-party certifications to verify the quality, purity, or potency of their products. This means that independent organizations have not assessed their manufacturing processes or tested their products to ensure they meet specific standards. Consumers should be aware that the absence of these certifications means there is less independent assurance of product quality. It also means that it is difficult to verify if Thorne Research is third-party tested.

How Thorne Research Compares

Compared to competitors like NOW Foods (trust score 75/100) which has GMP certification, and Garden of Life (trust score 65/100) which has some certified organic products, Thorne Research lags behind in third-party validation. These competitors offer greater transparency through certifications and testing. This difference is reflected in Thorne Research reviews.

Buying Guidance

Given the lack of third-party certifications and ingredient sourcing transparency, consumers should exercise caution when purchasing Thorne Research products. Purchase from reputable retailers and carefully examine product labels. Consult with a healthcare professional before using any new supplement.

Frequently Asked Questions

Has Thorne Research had any recalls?

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

Are Thorne Research supplements third-party tested?

No — Thorne Research 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 Research safe?

Thorne Research 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 Research a good brand?

Thorne Research 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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