Grade: D

HIGH RISK

Bayer

Item: Bayer
Rating: 40
Author: SupplementChecker

Bayer has a SupplementChecker trust score of 40/100, which is a Grade D, indicating a HIGH risk level. No third-party testing certifications were found for Bayer. This raises concerns about product quality and purity, making it difficult to verify if Bayer is a good brand.

Bayer Trust Summary

Trust Score: 40/100 (Below Average)
Grade: D
Risk Level: HIGH
Third-Party Tested: No
FDA Recalls: 0
Adverse Events: 15

Bayer has a trust score of 40/100 (Below Average). The brand is not third-party tested by NSF, USP, or Informed Sport, has no FDA recalls on record and 15 adverse event reports.

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Red Flags

⚠No third-party testing certifications found
⚠No GMP certification visible

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

Is Bayer Third-Party Tested?

No — Bayer 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 Bayer a Good Brand?

Bayer scores 40/100 (D) — this is a below-average score. We recommend considering brands with third-party certifications like NSF or USP. Bayer has a clean FDA record with no warnings or recalls. The brand does not currently hold third-party testing certifications.

About Bayer

Bayer's founding date is unknown. The company is independently owned and headquartered in the US. Bayer produces supplements in the herbal and mineral categories.

Product Specialization

Bayer focuses on supplements in the herbal and mineral categories. Specific product types include various herbal remedies and mineral supplements.

Testing & Certifications Explained

There are no third-party testing certifications on record for Bayer. This means that no independent organization has verified the quality, purity, or potency of Bayer's supplements. Consumers cannot be certain that the products contain the ingredients listed on the label or that they are free from contaminants. The absence of GMP certification is also notable.

How Bayer Compares

Compared to competitors like Nature Made (trust score 75/100, third-party tested) and NOW Foods (trust score 82/100, third-party tested), Bayer's trust score is significantly lower. These competitors provide greater transparency through third-party certifications, offering consumers more assurance about product quality.

Buying Guidance

Given Bayer's low trust score and lack of third-party testing, consumers should exercise caution. Purchase Bayer products from reputable retailers and carefully examine product labels. Consider choosing third-party tested supplements from brands with higher trust scores for greater confidence in product quality.

Frequently Asked Questions

Has Bayer had any recalls?

No — as of 2026, Bayer has zero FDA product recalls on record. Bayer received a trust score of 40/100 from SupplementChecker.

Are Bayer supplements third-party tested?

No — Bayer 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 Bayer safe?

Bayer received a trust score of 40/100 (grade: D, risk level: HIGH). 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 Bayer a good brand?

Bayer scores 40/100 (grade: D) — 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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