Bayer One A Day

Bayer One A Day receives a brand trust score of 0/100 in GoodSupp's independent analysis. The company was founded in 1940 and is headquartered in Whippany, New Jersey, USA. They hold 1 verified certifications including Consumerlab. These certifications are independently verified by GoodSupp and indicate the brand meets recognized quality, purity, and manufacturing standards. Note: Bayer One A Day has 3 historical regulatory incidents on record. These are factored into the overall trust score and are detailed in the violation history section above.

Yes. Bayer One A Day holds 1 verified third-party certifications: Consumerlab. Third-party testing means an independent laboratory — not the supplement company itself — has verified the product's contents, purity, and/or manufacturing practices. This is one of the strongest indicators of supplement quality because it removes the conflict of interest inherent in self-testing. Not all certifications are equal: NSF International and USP are considered the gold standard, while GMP certification indicates proper manufacturing practices.

Based on GoodSupp's quality analysis, the highest-rated Bayer One A Day supplements are: Men's Complete Multivitamin (score: 77/100); Proactive 65+ for Men & Women (score: 65/100). 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 One A Day is headquartered in Whippany, New Jersey, USA. The company was founded in 1940. They currently offer 72 products in their supplement lineup. Their official website is oneaday.com. Manufacturing location may differ from corporate headquarters — look for GMP certification to verify manufacturing quality standards.