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Field notes on finding factories in China, controlling quality before it ships, and moving goods to your market without surprises.

Unlabelled supplement bottle and capsules on a lab bench before third-party label claim testing

FeaturedQuality Control

How to verify what your contract manufacturer actually put in the bottle

A certificate of analysis is the factory's account of itself. Here is what to test independently, when to test , & which certificate proves GMP compliance.

HAMZA BALAKBIYECHAugust 26, 20265 min read

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