Read the label
Confirm lot, purity field, and date fields first.
COA
Certificates of Analysis
A COA is only useful when you can connect it to a real lot. Here are the fields that matter.
COA availableCertificate of Analysis with every lot.
99% purity specPurity stated on every product label.
Lot & expiryLot #, MFG and EXP on every label.
Custom-labeledMade-to-spec labels for this brand.
How to use a COA
Four checks.
Match the lot
A COA only helps if it is for the same lot as the unit.
Check identity & purity
Compare the report to what the label states.
Ask for gaps
No lot path means “tested” is incomplete.
Field guide
What to look for.
Lot number
Connects the physical unit to a specific batch report.
Identity
States what material the analysis is about.
Purity / assay
Measured values against the stated specification.
Lab context
Who reported the analysis and under what framing.
Date fields
When testing or release was recorded.
Label match
Lot, MFG, and EXP should align with the paperwork path.
Library
Lot lookup with the catalog.
Public lot lookup ships with inventory. We only post certificates for real lots.
Updates
Get updates.
One email when the documentation library is ready.