Grade: B+

LOW RISK

MIERS LABORATORIES LIMITED

Item: MIERS LABORATORIES LIMITED
Rating: 75
Author: SupplementChecker

MIERS LABORATORIES LIMITED has a SupplementChecker.co trust score of 75/100, which is a grade of B+ and indicates a LOW risk level. MIERS LABORATORIES LIMITED claims to have third-party tested supplements, but does not specify which third-party certifications they utilize. While the brand has a clean FDA record, they lack visible GMP certification and do not publish lab results, impacting overall transparency.

MIERS LABORATORIES LIMITED Trust Summary

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

MIERS LABORATORIES LIMITED 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 MIERS LABORATORIES LIMITED Third-Party Tested?

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

Is MIERS LABORATORIES LIMITED a Good Brand?

MIERS LABORATORIES LIMITED scores 75/100 (B+) — this is an average score. There may be room for improvement in testing transparency or certifications. MIERS LABORATORIES LIMITED 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 MIERS LABORATORIES LIMITED

MIERS LABORATORIES LIMITED is an independent US-based company in the vitamins category. The founding date of MIERS LABORATORIES LIMITED is unknown. They operate independently and are not part of a larger parent company.

Product Specialization

MIERS LABORATORIES LIMITED specializes in vitamins. While specific product lines are not detailed, the company likely offers a range of vitamin supplements catering to various health and wellness needs.

Testing & Certifications Explained

MIERS LABORATORIES LIMITED claims their products are third-party tested, but does not specify which third-party certifications they use. This means that while they assert independent verification of their products, the specific standards and rigor of these tests are unclear. Consumers should look for recognizable certification seals like USP, NSF, or Informed-Sport to ensure a product has undergone comprehensive and transparent testing.

How MIERS LABORATORIES LIMITED Compares

Compared to competitors like Nature Made (trust score 82/100, USP verified) and NOW Foods (trust score 85/100, Informed-Sport certified), MIERS LABORATORIES LIMITED's trust score of 75/100 is lower. Both Nature Made and NOW Foods have established third-party certifications, offering consumers greater assurance of product quality and safety. Another competitor, Garden of Life (trust score 70/100, NSF certified), has a similar trust score but provides more clarity on their third-party testing processes.

Buying Guidance

Given MIERS LABORATORIES LIMITED's trust score and limited certification information, consumers should exercise caution. If considering MIERS LABORATORIES LIMITED products, verify any third-party testing claims by looking for certification seals on the packaging. Purchasing from reputable retailers may also offer some additional assurance.

Frequently Asked Questions

Has MIERS LABORATORIES LIMITED had any recalls?

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

Are MIERS LABORATORIES LIMITED supplements third-party tested?

Yes — MIERS LABORATORIES LIMITED 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 MIERS LABORATORIES LIMITED safe?

MIERS LABORATORIES LIMITED 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