How to Read a Certificate of Analysis: UK Lab Guide
For laboratory research use only. Not for human consumption. This educational guide covers documentation for research materials and gives no dosing or medical advice.
Match the lot
A certificate of analysis (COA) records findings for a defined sample. Treat it as batch-specific evidence, not a guarantee for every vial or lot.
- Match product name and form.
- Match the batch or lot number exactly, including letters, hyphens and zeroes.
- Check test date, report ID, sample description, laboratory, method and units.
A report for another lot is not a report for your lot. Keep the COA with the receiving record and flag discrepancies before laboratory use.
What “Not currently published” means
“Not currently published” on our Certificates of Analysis page means no certificate of analysis is currently published for that product or strength. It is a documentation gap, not a pass or fail result.
Verify the source
For a Janoshik report, use its verification route and confirm the report ID or QR destination, product, lot, date and findings. A cropped image without a matching identifier is not enough. Check the client field to see who commissioned the report.
Compare the COA with BPC-157, TB-500 or Tirzepatide records. See research-use-only guidance, the FAQ and research shop. Laboratory documentation only.