How to Read a Peptide Certificate of Analysis
A practical way to match the sample, lot, method, result, and report version before relying on a peptide COA.
Read the guideA simpler peptide catalog is on the way. Clean labels, easy-to-find lab reports, and a sharper standard for every release.
For laboratory research only. Not for human or veterinary use.

Illustrative packaging
Peptesa will put the useful details up front. The exact product. The exact lot. The report that belongs to it. If the record is not ready, the product stays offline.
How release worksLaunch quality standard
Matched to the exact listed material
RequiredMethod and result shown together
RequiredLabel, lot, and report connected
RequiredCurrent version kept clear
RequiredProposed release format. No product data is shown.
Straightforward guides with sources you can open for yourself.
A practical way to match the sample, lot, method, result, and report version before relying on a peptide COA.
Read the guideHPLC and mass spectrometry answer different analytical questions. Read both methods within the scope of the sample and report.
Read the guideThe research-use boundary covers the product, the page around it, and the way a supplier communicates across every public channel.
Read the guideNot yet. The catalog stays closed during prelaunch. Join the waitlist for the opening date and first product release.
Peptesa is being built for qualified laboratory researchers. Future products will be for research use only and not for human or veterinary use.
That is the launch standard. A product will not go live until its exact documentation and lot-record workflow are ready. No reports are public during prelaunch.
The research library is open. It covers COAs, analytical methods, and the details that make a result easier to evaluate.
First-release notes, new research, and the opening date.