Grade: B+

LOW RISK

GRN Group Corporation

Item: GRN Group Corporation
Rating: 75
Author: SupplementChecker

GRN Group Corporation has a SupplementChecker trust score of 75/100, a grade of B+, indicating a LOW risk level. GRN Group Corporation claims to conduct third-party testing, though specific certifications are not specified. With a clean FDA record, GRN Group Corporation appears to be a reasonably trustworthy brand.

GRN Group Corporation Trust Summary

Trust Score: 75/100 (Good)
Grade: B+
Risk Level: LOW
Third-Party Tested: Yes (self-reported)
FDA Recalls: 0
Adverse Events: 0

GRN Group Corporation has a trust score of 75/100 (Good). The brand is claims third-party testing (self-reported), has no FDA recalls on record and no adverse event reports.

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Red Flags

⚠No GMP certification visible

Verified Strengths

✓Claims third-party testing
✓Clean FDA record — no warnings, recalls, or significant adverse events

Certifications

Third-Party Tested

Third-party testing means an independent laboratory has verified this product's contents, purity, and potency match what's on the label.

FDA Record

FDA Warning Letters

Recalls

Adverse Reports

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

Is GRN Group Corporation Third-Party Tested?

Yes — GRN Group Corporation is Third-party tested. This means an independent laboratory has verified that the products' contents, purity, and potency match their label claims.

Is GRN Group Corporation a Good Brand?

GRN Group Corporation scores 75/100 (B+) — this is an average score. There may be room for improvement in testing transparency or certifications. GRN Group Corporation has a clean FDA record with no warnings or recalls. The brand holds third-party certifications (Third-party tested), which is a strong quality indicator.

About GRN Group Corporation

GRN Group Corporation is a US-based vitamin brand operating independently. The founding date of GRN Group Corporation is unknown. They develop and market various supplements.

Product Specialization

GRN Group Corporation focuses on vitamins. While specific products are not detailed, they likely offer a range of vitamins.

Testing & Certifications Explained

GRN Group Corporation claims to have third-party tested supplements, but does not specify which third-party does the testing. Without knowing the specific certification, it is difficult for consumers to verify the quality and safety of GRN Group Corporation's products. Consumers should seek clarification from GRN Group Corporation regarding their testing protocols.

How GRN Group Corporation Compares

Compared to competitors like Nature Made (trust score 82/100, USP verified) and NOW Foods (trust score 88/100, Informed Sport certified), GRN Group Corporation's trust score is lower and lacks specific certifications. Garden of Life (trust score 70/100, NSF certified) has a similar trust score, but offers more transparency with its certifications. Consumers may prefer brands with more clearly defined and verifiable third-party testing.

Buying Guidance

If considering GRN Group Corporation products, consumers should contact the company directly to request detailed information about their third-party testing processes. Purchase from reputable retailers to ensure product authenticity. Given the lack of transparency, carefully evaluate whether the potential benefits outweigh the risks compared to brands with more robust certification and transparency practices.

Frequently Asked Questions

Has GRN Group Corporation had any recalls?

No — as of 2026, GRN Group Corporation has zero FDA product recalls on record. They maintain a clean FDA record with no warning letters or significant adverse event reports. GRN Group Corporation received a trust score of 75/100 from SupplementChecker.

Are GRN Group Corporation supplements third-party tested?

Yes — GRN Group Corporation supplements are third-party tested. They hold the following certifications: third-party tested (self-reported). Third-party testing means an independent lab has verified the product's contents, purity, and potency match the label claims.

Is GRN Group Corporation safe?

GRN Group Corporation received a trust score of 75/100 (grade: B+, risk level: LOW). This score is calculated from FDA records, third-party certifications, adverse event reports, and transparency practices. No FDA warnings or recalls are on record.

Grade A+ • 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.

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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Quick Facts

Trust Score: 75/100
Grade: B+
Risk Level: LOW
Third-Party Tested: Yes
FDA Recalls: 0
Adverse Reports: 0

⚠ No GMP certification visible