Testing Standards
Testing Standards
Before You Buy, Verify the COA
At Peptory Labs, we believe a Certificate of Analysis should do more than look professional. It should be batch-specific, traceable, and backed by real third-party documentation. That is why we emphasize rigorous testing standards and QR-linked verification designed to give researchers greater confidence before they buy.
Why Verification Matters
Why Verification Matters
Not all COAs provide the same level of confidence. A report should be more than a screenshot or a logo placed on a document. Buyers should look for batch-specific testing, clear lab identification, and a way to verify that the report is tied to the issuing laboratory. We encourage customers to verify our documentation and to hold every supplier to the same standard.
What We Look For
What We Look For
Purity by HPLC
Measures peptide purity percentage and confirms the sample meets our published quality threshold.
Identity Confirmation
Verifies peptide identity using HPLC chromatographic retention-time comparison against a reference standard.
Net Peptide Content
Confirms the actual peptide amount/content in the vial, not just the label claim.
Heavy Metals Screening
Screens for heavy metals such as arsenic, cadmium, lead, mercury, and chromium.
Sterility & Endotoxin Testing
Reviews sterility by PCR and endotoxin levels using USP <85> standards.
Batch Traceability
Each COA is tied to a specific lot, batch, QR verification link, and third-party lab report.
Every Peptory Labs COA is issued by an independent third-party laboratory and tied to the specific product lot being reviewed. Our Full QC Panel goes beyond a basic purity-only report by reviewing purity, identity confirmation, net peptide content, heavy metals, sterility, endotoxin levels, and batch-level traceability. Each report includes third-party documentation and QR-based verification so customers can review the testing details directly.
QR-Linked COA Verification
QR-Linked COA Verification
When available, QR-linked verification gives customers an added layer of confidence by helping connect batch documentation back to the issuing lab. We believe buyers should be able to review supporting data and verify that a COA is real, traceable, and tied to the tested batch.
Don't just read the COA. Verify it.
Buyer Checklist
What Buyers Should Check Before Purchasing From Any Company
Is the COA batch-specific?
Is the testing laboratory clearly identified?
Is there a QR code or other verification method?
Can the report be traced back to the issuing lab?
Does the documentation show meaningful testing data rather than minimal claims?
We believe customers should know what to look for before buying from us or anyone else.
Our Standard
Our Standard
Peptory Labs is built around transparency, documentation, and higher trust standards. We are not trying to compete on hype alone. We are building a brand that gives customers more confidence through stronger verification, clearer supporting data, and a more transparent approach to quality.
Questions
Questions About Our Testing Standards?
Have questions about our batch documentation, testing approach, or quality standards? Contact us for more information.