USP, NSF, ConsumerLab: Decoding Every Certification Logo
A buyer's reference for supplement verification marks
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About this book
More than 50% of American adults take dietary supplements, yet fewer than 10% understand what certification logos on labels actually verify. A bottle stamped with 'USP Verified' guarantees different things than one marked 'NSF Certified for Sport' or 'ConsumerLab Approved.' Most buyers assume all third-party seals mean the same thing. They do not. This book decodes 12 major certification marks using the Trust Score Rubric, a five-axis evaluation that shows exactly what each logo tests for and what it ignores. You will learn which certifications verify ingredient identity, which test for contaminants, and which screen for banned substances. By the final chapter, you will be able to read any supplement label and assess its verification status in under 60 seconds.
The Trust Score Rubric — each logo is scored on 5 axes (identity, potency, contaminants, manufacturing, banned substances).
What’s inside
- Chapter 1. The Certification Landscape in 2026
- Chapter 2. USP Verified: The Pharmacy Standard
- Chapter 3. NSF Certified for Sport: The Athlete Standard
- Chapter 4. ConsumerLab: Independent Lab Testing
- Chapter 5. Informed Choice & Informed Sport
- Chapter 6. GMP, FDA Inspected, Lab Verified: What They Don't Mean
- Chapter 7. The Trust Score Rubric
- Chapter 8. Quick-Reference Label Decoder
Sample from Chapter 1
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