Grade: C

MEDIUM RISK

Strong Earth

Item: Strong Earth
Rating: 50
Author: SupplementChecker

Strong Earth has a SupplementChecker.co trust score of 50/100, which equates to a grade of C and a MEDIUM risk level. Notably, we found no evidence that Strong Earth products are third-party tested for purity or potency. This lack of independent verification is a significant factor in the brand's overall score, impacting consumer confidence in whether Strong Earth is safe.

Strong Earth Trust Summary

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

Strong Earth 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 Strong Earth Third-Party Tested?

No — Strong Earth 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 Strong Earth a Good Brand?

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

About Strong Earth

Strong Earth is a US-based specialty supplement brand operating independently. The founding date of Strong Earth is unknown. They offer products in the specialty supplement category.

Product Specialization

Strong Earth specializes in specialty supplements. Specific product types that Strong Earth is known for are not specified in the available data.

Testing & Certifications Explained

We found no evidence that Strong Earth products undergo third-party testing or hold relevant certifications. This means that independent organizations are not verifying the quality, purity, or potency of their supplements. Consumers should be aware that without these certifications, there is less assurance that the product contains the ingredients listed on the label at the stated dosages, and that it is free from harmful contaminants. Many consumers specifically look for third-party tested supplements to ensure product safety and efficacy.

How Strong Earth Compares

Compared to other brands in the specialty supplement category, Strong Earth's trust score of 50/100 places it lower than brands with verified third-party testing. For example, a brand like Klean Athlete (trust score 85/100) has NSF Certified for Sport certification, while Thorne Research (trust score 92/100) publishes extensive lab results. These competitors demonstrate a higher level of commitment to transparency and quality assurance.

Buying Guidance

Given Strong Earth's trust score and lack of third-party testing, consumers should exercise caution. If considering purchasing Strong Earth products, look for "Strong Earth reviews" from multiple sources. Verify any claims made on the product label against available information, and consider choosing brands with more transparent testing and certification practices.

Frequently Asked Questions

Has Strong Earth had any recalls?

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

Are Strong Earth supplements third-party tested?

No — Strong Earth 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 Strong Earth safe?

Strong Earth 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 Strong Earth a good brand?

Strong Earth 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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