Research-grade peptides. Documented purity.
A specification-first catalog of 32 peptide compounds supplied as laboratory vials, with a published third-party certificate for every size in our open COA library.
Certificate facts
Updated
- Each certificate is an LC-MS report issued by AxisPharm, LLC and provided by our supplier, Protixa.
- The lot number is what ties a vial to a certificate.
- Any lot in the library can be looked up by its lot number in the lot lookup.
- Where the certificates come from
Research peptide vials
Browse all →Documentation over claims
No superlatives, no invented numbers. We do not publish a quantitative claim until an artifact backs it — and where documentation is still in progress, we say so plainly rather than filling the gap.
Lot tracking
The lot lookup opens the certificate published for the lot number on a vial label.
Third-party testing
LC-MS identity and UV purity from a named third-party laboratory.
COA publication
A public certificate for every size in the catalog.
US fulfillment
Sealed, ambient-stable packaging shipped from the USA.
Reading a certificate of analysis
What each field on a certificate records, and what the certificates on this site do and don't report.
Research library
Compound references with cited literature, side-by-side comparisons, and storage and purity-testing guides.
Common questions
Ordering, shipping, documentation, and research-use policy.
Catalog & COA updates
New compounds and newly published certificates, occasionally. No noise, unsubscribe any time.