Lab notes, documentation deep-dives, and updates from Peptidyl Labz. Practical, research-framed writing on how we test, handle, and release the materials in our catalog — never advice on use.
This month's batch releases are now live in the COA Library, each with full HPLC identity and purity data. Here's what changed in our release schedule, how to match a vial to its certificate by batch number, and where to find the test method and lab on every report.
Read the update →A plain-language walkthrough of a chromatogram: retention time, peak area, and how the purity percentage on a Certificate of Analysis is actually calculated.
Read →Why storage temperature matters for research materials, what "lyophilized" means for shelf stability, and how we pack temperature-sensitive lots for transit.
Read →What each field on a COA means — identity, purity, method, lab, and batch — and how to use them to verify a material before it reaches your bench.
Read →A look at the path from synthesis to listing: independent HPLC analysis, COA issuance, and why a batch with no certificate on file never gets sold.
Read →We've added several research compounds in capsule format alongside our vials and liquids. Here's what's new and how each format is documented and stored.
Read →An overview of our buyer-qualification step: what we ask, what we record, and how attestation keeps research materials in qualified hands.
Read →Get our latest lab notes, documentation guides, and batch-release announcements. Research-framed updates only — no advice on use, unsubscribe anytime.