Peptara Labs COA: Certificates of analysis, third-party lab tested by Titreon. Every batch, on the record.

Every batch is tested by Titreon Analytical, an independent third-party laboratory whose quality system is aligned to ISO/IEC 17025:2017 (not itself accredited). Select batches also carry an independent bacterial endotoxin report from Janoshik. Peptara does not run its own purity testing.

Identity by HPLC retention-time matching and LC-MS, chromatographic purity by HPLC against a not-less-than 95.0 percent release criterion, net peptide content, sterility, bacterial endotoxin, heavy metals, and a fentanyl immunoassay screen.

Each certificate shown is from a representative recent batch of that peptide. If you want the certificate that matches the exact batch you received, message us on WhatsApp with your order number and we will send it. There is no lot printed on the vial, so the order number is what ties your batch to its certificate.

Yes. Every full-panel certificate includes a fentanyl immunoassay screen and elemental impurity testing for arsenic, cadmium, chromium, mercury, and lead. All returned Not Detected on the published batches.

Yes. Vials ship unlabeled on purpose, so verification runs on your order number: message us on WhatsApp with it and we will confirm the exact batch you received and send the matching certificate. The certificate number on each report can also be referenced with Titreon Analytical.

Yes. Our Retatrutide, Tirzepatide, BPC-157 and GHK-Cu batches carry an independent bacterial endotoxin report issued by Janoshik, in addition to the full Titreon Analytical certificate. Each Janoshik report is linked on its certificate card and can be verified at janoshik.com/verify using the unique key printed on the report.

Janoshik is an independent analytical laboratory widely used for third-party peptide testing. Each Janoshik test report lists the sample, batch, and result, plus a unique verification key. Enter that key at janoshik.com/verify to confirm the report is genuine and has not been altered.

Bacterial endotoxin is part of the Titreon Analytical panel run on every batch. Select batches also carry a second, independent endotoxin report from Janoshik; where one exists it is linked on the certificate card. Message us with your order number and we will send the reports that match your vial.

By high-performance liquid chromatography (HPLC), which separates a sample into its components and reports the main peak as a percentage of what was detected. A purity figure means something only beside its method and its release criterion: on these certificates that is HPLC against a not-less-than 95.0 percent criterion, with identity confirmed separately by LC-MS.

Any vendor can write "third-party tested"; the ones worth trusting publish the certificate itself, name the laboratory and tie it to a lot you can look up. Peptara Labs publishes its Titreon Analytical certificates on this page with a lot lookup, and the guide to judging peptide companies lists the checks to run on any vendor.