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Thorne

Stress B-Complex

Product Quality

Overall evidence-based quality rating

How Product Quality is assessed
9.21Superior

Price

$0.35/serving

Retail

$21

Container

60 servings

Serving

1 Capsule

Brand Quality

9.47

Why this score

Testing practices

  • Lot Tested
  • Third-Party Lab Tested
  • Transparent Batch-Specific COAs
  • ISO 17025 Lab

Testing coverage

  • Identity
  • Purity
  • Potency
  • Heavy Metals
  • Raw Ingredient Testing

Certifications

  • NSF Certified
  • NSF Certified for Sport

Manufacturing standards

  • cGMP Certified
  • Made in USA

Innovation

  • Clinically Studied Product

Active Ingredients

Ranking

B-Complex Products99%

Inactive Ingredients

10 Ideal
  • HypromelloseIdeal
  • Microcrystalline CelluloseIdeal
  • Calcium LaurateIdeal
  • Silicon DioxideIdeal

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Supplement AI is evidence-based decision support, not medical advice, diagnosis, or treatment. The only official Supplement AI domain is supplementai.io; we are not affiliated with similarly named apps or services and are not currently on the App Store or Google Play Store.

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