A Certificate of Analysis (COA) is a laboratory document reporting a specific batch’s test results, including alkaloid content and contaminant screening. It is the primary record buyers use to verify what is in a product.
For how to read a COA line by line and what each result means, read the full guide: What a Kratom COA Is (and How to Read One) →
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Disclaimer: This glossary entry is for educational purposes only and is not intended as medical, legal,
or professional advice. Kratom is not approved by the FDA to diagnose, treat, cure, or prevent any disease.