Purity & COAs
Find your lot. Read the lab report.
The lot number is printed on the label and crimp of every vial. Enter it below to pull the certificate of analysis — HPLC purity and mass-spec identity — for exactly the lot in your hand.
How a Pepthea product gets made
01
Raw material verification
Every peptide arrives with a supplier COA, which we re-verify by identity testing before it enters inventory.
02
Lyophilization & fill
Compounds are lyophilized and filled under controlled conditions with full lot traceability from raw material to sealed vial.
03
Third-party lab testing
An independent lab tests each lot: purity by HPLC, identity by mass spectrometry, plus appearance and net-content checks.
04
Published, per lot
The certificate of analysis is published under the lot number printed on the vial. If a lot's COA isn't up yet, it isn't shipping yet.