Doctor's Best

Doctor's Best receives a brand trust score of 0/100 in GoodSupp's independent analysis. The company was founded in 1990 and is headquartered in Tustin, California, USA. They hold 1 verified certifications including Fda Gmp Inspections. These certifications are independently verified by GoodSupp and indicate the brand meets recognized quality, purity, and manufacturing standards. Note: Doctor's Best has 1 historical regulatory incident on record. These are factored into the overall trust score and are detailed in the violation history section above.

Yes. Doctor's Best holds 1 verified third-party certifications: Fda Gmp Inspections. 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 Doctor's Best supplements are: SAM-e, 400 mg (score: 100/100); High Absorption Postbiotic Butyrate featuring Corebiome, 30 Veggie Capsules (score: 100/100); Immune Support Postbiotic, 500 mg, 60 Veggie Caps (score: 100/100). 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.

Doctor's Best is headquartered in Tustin, California, USA. The company was founded in 1990. They currently offer 186 products in their supplement lineup. Their official website is doctorsbest.com. Manufacturing location may differ from corporate headquarters — look for GMP certification to verify manufacturing quality standards.