Grade: D

HIGH RISK

Jamieson Laboratories

Item: Jamieson Laboratories
Rating: 45
Author: SupplementChecker

Jamieson Laboratories has a SupplementChecker.co trust score of 45/100, which is a Grade D, indicating a HIGH risk level. While Jamieson Laboratories claims third-party testing, no specific certifications are identified. Consumers should be aware of a past product recall when considering this brand.

Jamieson Laboratories Trust Summary

Trust Score: 45/100 (Below Average)
Grade: D
Risk Level: HIGH
Third-Party Tested: Yes (self-reported)
Recalls: 1
Adverse Events: 0

Jamieson Laboratories has a trust score of 45/100 (Below Average). The brand is claims third-party testing (self-reported), has 1 Health Canada recall on record and no adverse event reports.

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Red Flags

⚠1 product recall(s) on record
⚠No GMP certification visible

Verified Strengths

✓Claims third-party testing

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.

Regulatory Record

FDA Warning Letters

Recalls

Adverse Reports

Recall History

Recalled by Health Canada Mar 31, 2026

Jamieson Laboratories products recall; Tamper-evident seals defective

Is Jamieson Laboratories Third-Party Tested?

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

Is Jamieson Laboratories a Good Brand?

Jamieson Laboratories scores 45/100 (D) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. Note: 1 product recall(s) are on record, which impacts the overall trust assessment. The brand holds third-party certifications (Third-party tested), which is a strong quality indicator.

About Jamieson Laboratories

Jamieson Laboratories is a supplement brand offering a range of health and wellness products. The company is independently owned and based in the US, though its founding date is unknown. Jamieson Laboratories aims to provide accessible supplements to a broad consumer base.

Product Specialization

Jamieson Laboratories focuses on a variety of supplement categories, including vitamins, herbal remedies, protein supplements, and topical products. They offer a wide array of vitamins and minerals, as well as herbal supplements targeting specific health concerns.

Testing & Certifications Explained

Jamieson Laboratories claims their products are third-party tested; however, they do not specify which third-party certifications they utilize. This means there is no independent verification of product quality, purity, or potency from a recognized organization. Consumers should be aware that the absence of a visible GMP certification also means there is no guarantee of manufacturing quality.

How Jamieson Laboratories Compares

Compared to competitors like Nature Made (trust score 72/100, USP verified) and NOW Foods (trust score 85/100, Informed Sport certified), Jamieson Laboratories' trust score is considerably lower. These competitors have demonstrated a commitment to third-party certifications, providing consumers with greater assurance of product quality. Garden of Life (trust score 60/100, NSF Certified) also scores higher and provides more transparency.

Buying Guidance

Given the Jamieson Laboratories trust score and lack of specific third-party certifications, consumers should exercise caution. If considering Jamieson Laboratories products, carefully examine product labels and research individual ingredients. Be aware of the Jamieson Laboratories recall history and consider purchasing from retailers with strong return policies.

Frequently Asked Questions

Has Jamieson Laboratories had any recalls?

Yes — as of 2026, Jamieson Laboratories has 1 Health Canada product recall(s) on record. Jamieson Laboratories received a trust score of 45/100 from SupplementChecker.

Are Jamieson Laboratories supplements third-party tested?

Yes — Jamieson Laboratories 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 Jamieson Laboratories safe?

Jamieson Laboratories received a trust score of 45/100 (grade: D, risk level: HIGH). This score is calculated from regulatory records (FDA and Health Canada), third-party certifications, adverse event reports, and transparency practices. Note: 1 product recall(s) are on record.

Is Jamieson Laboratories a good brand?

Jamieson Laboratories scores 45/100 (grade: D) — this is below average. We recommend looking for brands with third-party certifications like NSF or USP. They hold third-party certifications (Third-party tested), which is a strong indicator of product quality. Note: 1 recall(s) are on record.

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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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