Bayer

Bayer receives a brand trust score of 0/100 in GoodSupp's independent analysis. The company was founded in 1863 and is headquartered in Leverkusen, North Rhine-Westphalia, Germany. Our research did not find independently verified third-party certifications for this brand. While this doesn't mean their products are low quality, third-party testing is considered a strong indicator of commitment to quality assurance. Note: Bayer has 5 historical regulatory incidents on record. These are factored into the overall trust score and are detailed in the violation history section above.

GoodSupp's research did not find verified third-party testing certifications for Bayer. Third-party testing by organizations like NSF International, USP, or Informed Sport is considered one of the strongest indicators of supplement quality. Without it, consumers must rely more heavily on the brand's own quality claims. This doesn't necessarily mean Bayer's products are low quality, but it does mean there's less independent verification of their claims.

Based on GoodSupp's quality analysis, the highest-rated Bayer supplements are: One A Day Prenatal (score: 88/100); Multivitamin (score: 77/100); Flintstone Gummies Sour (score: 68/100). These scores are calculated from ingredient quality, dosage adequacy, bioavailability, label transparency, and inactive ingredient safety. Scores can vary significantly across a brand's product line — a high brand trust score doesn't guarantee every individual product is top-quality.

Bayer is headquartered in Leverkusen, North Rhine-Westphalia, Germany. The company was founded in 1863. They currently offer 1 products in their supplement lineup. Their official website is bayer.com. Manufacturing location may differ from corporate headquarters — look for GMP certification to verify manufacturing quality standards.