Grade: C

MEDIUM RISK

Dr. Clark Research Association Dr. Clark Zentrum

Item: Dr. Clark Research Association Dr. Clark Zentrum
Rating: 50
Author: SupplementChecker

Dr. Clark Research Association Dr. Clark Zentrum has a SupplementChecker.co trust score of 50/100, a Grade of C, and a risk level of MEDIUM. Notably, we found no third-party testing certifications for Dr. Clark Research Association Dr. Clark Zentrum. This means consumers have no independent verification of Dr. Clark Research Association Dr. Clark Zentrum's ingredient quality or label accuracy.

Dr. Clark Research Association Dr. Clark Zentrum Trust Summary

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

Dr. Clark Research Association Dr. Clark Zentrum 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.

Where to Buy Dr. Clark Research Association Dr. Clark Zentrum

Purchase from trusted retailers. We may earn a commission at no extra cost to you.

Buy on iHerb Buy on Amazon

Check another brand:

e.g. Nature Made, Thorne, NOW Foods...

Check

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 Dr. Clark Research Association Dr. Clark Zentrum Third-Party Tested?

No — Dr. Clark Research Association Dr. Clark Zentrum 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 Dr. Clark Research Association Dr. Clark Zentrum a Good Brand?

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

About Dr. Clark Research Association Dr. Clark Zentrum

Dr. Clark Research Association Dr. Clark Zentrum is an independent supplement brand with headquarters in the US. The founding date of Dr. Clark Research Association Dr. Clark Zentrum is unknown. They offer a range of supplements.

Product Specialization

Dr. Clark Research Association Dr. Clark Zentrum offers products in several categories including vitamins, minerals, herbal supplements, fish oil, and protein. They offer a variety of formulations within these categories.

Testing & Certifications Explained

Dr. Clark Research Association Dr. Clark Zentrum does not appear to have any third-party certifications. This means that no independent organization has verified the quality, purity, or potency of their products. Consumers should be aware that the absence of certifications means there is no independent assurance that the products contain the ingredients listed on the label or that they are free from contaminants. The question of "is Dr. Clark Research Association Dr. Clark Zentrum safe?" is difficult to answer definitively without this verification.

How Dr. Clark Research Association Dr. Clark Zentrum Compares

Many supplement brands pursue third-party testing to demonstrate product quality. For example, competitor brands like Thorne Research (trust score 92/100) and NOW Foods (trust score 85/100) have earned high trust scores through extensive third-party certifications. Garden of Life (trust score 78/100) also utilizes certifications to increase consumer confidence. These brands generally score higher than the Dr. Clark Research Association Dr. Clark Zentrum trust score.

Buying Guidance

Given the lack of third-party testing, consumers should approach Dr. Clark Research Association Dr. Clark Zentrum products with caution. Purchase from retailers with strong return policies. Consumers should carefully evaluate "Dr. Clark Research Association Dr. Clark Zentrum reviews" and consider brands with more transparent testing practices.

Frequently Asked Questions

Has Dr. Clark Research Association Dr. Clark Zentrum had any recalls?

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

Are Dr. Clark Research Association Dr. Clark Zentrum supplements third-party tested?

No — Dr. Clark Research Association Dr. Clark Zentrum 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 Dr. Clark Research Association Dr. Clark Zentrum safe?

Dr. Clark Research Association Dr. Clark Zentrum 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 Dr. Clark Research Association Dr. Clark Zentrum a good brand?

Dr. Clark Research Association Dr. Clark Zentrum 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.

Get FDA Recall Alerts

We'll notify you when FDA recalls affect supplement brands you care about.

Compare Similar Brands

Brands in similar categories with comparable trust profiles. Compare certifications, scores, and safety records.

65/100

Lower rated

Brightside

Grade B • Higher score

65/100

Lower rated

Outwork Nutrition

Grade B • Higher score

65/100

Lower rated

Vital Vitamins

Grade B • Higher score

65/100

Lower rated

Thesis

Grade B • Higher score

65/100

Lower rated

Traditional Medicinals

Grade B • 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.

Promote Your Trust Score

Embed this badge on your site — it displays Dr. Clark Research Association Dr. Clark Zentrum's verified trust score and links back to this profile page. Helps show buyers you're transparent about third-party testing.

Small · 220×110

<iframe src="https://supplementchecker.co/embed/dr-clark-research-association-dr-clark-zentrum/" width="220" height="110" frameborder="0" loading="lazy" title="Dr. Clark Research Association Dr. Clark Zentrum trust score by SupplementChecker"></iframe>

Medium · 320×160

<iframe src="https://supplementchecker.co/embed/dr-clark-research-association-dr-clark-zentrum/" width="320" height="160" frameborder="0" loading="lazy" title="Dr. Clark Research Association Dr. Clark Zentrum trust score by SupplementChecker"></iframe>

Large · 420×210

<iframe src="https://supplementchecker.co/embed/dr-clark-research-association-dr-clark-zentrum/" width="420" height="210" frameborder="0" loading="lazy" title="Dr. Clark Research Association Dr. Clark Zentrum trust score by SupplementChecker"></iframe>

Paste the snippet anywhere on your site. The badge updates automatically when Dr. Clark Research Association Dr. Clark Zentrum's trust score changes.

Own this brand? Contact us to update your information.

Want to find supplements you can trust?

Third-party testing is the single best indicator of supplement quality. We analyzed Dr. Clark Research Association Dr. Clark Zentrum and 500+ other brands to find the ones that actually prove what's on the label.

See the best third-party tested supplements →