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TransparencyAnalytical3 min readHow to Actually Read a Peptide Certificate of AnalysisEvery peptide vendor says it's tested. A COA is the difference between a claim and a measurement — here's how to read a peptide certificate line by line.Sarah Lindqvist · June 30, 2026
3 min read · June 12, 2026Reconstitution Basics for Lyophilized Research PeptidesNet peptide content, diluent choice, and the arithmetic that turns a lyophilized vial into a known working concentration — without ruining the material.
3 min read · May 18, 2026Purity, Identity, and Net Content: Three Numbers, Three QuestionsHPLC purity, mass-spec identity, and net peptide content answer three different questions. Confusing them is the most common mistake in qualifying research peptides.
3 min read · April 25, 2026Storage & Handling of Lyophilized Peptides in the LabCold chain, freeze–thaw, light, and the difference between how long dry powder lasts and how long a reconstituted solution does.