Grade: C

MEDIUM RISK

Sunmark

Item: Sunmark
Rating: 50
Author: SupplementChecker

Sunmark has a SupplementChecker trust score of 50/100, which is a Grade C, indicating a MEDIUM risk level. No third-party testing certifications were found for Sunmark products. Consumers wondering "is Sunmark third-party tested?" should note the lack of readily available independent verification.

Sunmark Trust Summary

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

Sunmark 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 Sunmark Third-Party Tested?

No — Sunmark 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 Sunmark a Good Brand?

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

About Sunmark

Sunmark is a US-based supplement brand operating as an independent company. The founding date of Sunmark is unknown. They offer a range of supplements and over-the-counter health products.

Product Specialization

Sunmark specializes in vitamins, minerals, and fish oil supplements. They offer a variety of formulations and dosages within these categories, catering to general wellness and specific health needs.

Testing & Certifications Explained

Sunmark does not appear to have any third-party certifications to verify the quality, purity, or potency of its products. This means that independent organizations have not assessed Sunmark's manufacturing processes or tested its products to ensure they meet specific standards. Consumers should be aware that the absence of certifications increases the risk of inaccurate labeling or contamination.

How Sunmark Compares

Compared to brands like Nature Made (trust score 75/100) and NOW Foods (trust score 82/100), which both have GMP certifications and publish lab results, Sunmark lags behind in transparency and independent verification. Kirkland Signature (trust score 68/100) also demonstrates a higher level of assurance through its USP verification. These competitors offer consumers greater confidence in product quality and safety through their commitment to third-party testing.

Buying Guidance

Given Sunmark's trust score and lack of third-party certifications, consumers should exercise caution when considering their products. Purchase from reputable retailers and carefully review product labels for accurate ingredient information. There is no "Sunmark recall" to report. Always consult with a healthcare professional before starting any new supplement regimen. Be sure to read "Sunmark reviews" from multiple sources before purchasing.

Frequently Asked Questions

Has Sunmark had any recalls?

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

Are Sunmark supplements third-party tested?

No — Sunmark 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 Sunmark safe?

Sunmark 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 Sunmark a good brand?

Sunmark 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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