Quality Control
Understanding COAs
3 min read · Updated 2026-06-01 · VaultLabs Research Editorial
How to read Certificate of Analysis documents for research peptide lots.
Research use only. For in vitro research use only. Not for human or animal consumption. Not for human consumption, medical use, or personal application.
What a COA contains
A COA links a lot number to analytical results — commonly HPLC purity, identity confirmation, and test date.
COA content varies by batch. Not every lot may be published online immediately.
Qualification workflow
Match vial lot to COA lot field before accepting material into inventory.
Archive COA PDF with receiving documentation for audit trails.