Superior Source

Superior Source receives a brand trust score of 77/100 in GoodSupp's independent analysis. The company was founded in 1969 and is headquartered in Los Angeles, California, United States. 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. GoodSupp's sourced records currently contain no regulatory incident for this brand; absence is not a guarantee of compliance or safety.

GoodSupp's research did not find verified third-party testing certifications for Superior Source. 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 Superior Source'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 Superior Source supplements are: Biotin 1000 mcg (score: 100/100); Biotin 5000 mcg (score: 100/100); D3 25 mcg (1000 IU) MicroLingual Tablets (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.

Superior Source is headquartered in Los Angeles, California, United States. The company was founded in 1969. They currently offer 74 products in their supplement lineup. Their official website is superiorsourcevitamins.com. Manufacturing location may differ from corporate headquarters — look for GMP certification to verify manufacturing quality standards.