Quality & Verification
Certificates of Analysis: how to verify your lot
Last updated: July 3, 2026
For a broader framework on how to read purity claims and COAs, start with the library guide; when checking RTA-GLP3, match the published report to the lot number on the vial.
A Certificate of Analysis, or COA, is the analytical record for the exact lot you received. Curo does not issue generic or representative paperwork. Every lot is released against its own lot-specific COA, so the numbers you are reading correspond to the precise material in your hands.
This article explains what a COA reports and how to confirm the results for your batch.
What a Curo COA reports
Curo's certificates are published lab reports for each source lot. Depending on what was run for that lot, a COA reports:
- Identity: confirmation that the material is the peptide it claims to be.
- Purity: the chromatographic purity of the peptide, reported as a percentage.
- Fill / potency: the measured net peptide content against the labeled amount.
- Endotoxin: bacterial endotoxin results, reported in EU per vial against a limit, where available.
The certificate is the source of truth for the batch. If a question ever comes up about identity, purity, fill, or seal integrity, the answer is on the COA rather than in the look or feel of the vial.
How to find the COA for your vial
The vial gives you the two things you need: a QR code and a printed lot number.
- Scan the QR code on the vial. It opens Curo's Certificates of Analysis page, the library of published lab reports. You can also go to that page directly at any time.
- Match your lot number. Find the lot number printed on your vial and open the report that matches it. That report is the certificate for the exact material in your hands.
Match on the lot number, not the product name alone. The point of a lot-specific COA is that it ties results to one batch, so the lot number is what confirms you are reading the right one.
Confirming the result at the lab
Curo's published reports are BT Labs lab reports, and each one carries a link to verify that result at BT Labs directly. That means you are not taking a single number on faith from the storefront. You can follow the verification link on the certificate to confirm the lab result at its source.
If you cannot find your COA
If you cannot locate the certificate for a lot you received, the team can pull it for you. Reach out at info@curo.you with your lot number and we will send it over. See contact us for all the ways to reach the team.