Zama Biosciences sells research peptides exclusively to qualified researchers and laboratories for in vitro and laboratory use. Please confirm before continuing.
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Educational guides on analytical testing, Certificates of Analysis, purity, and peptide handling. For laboratory research use only.
A Certificate of Analysis documents a batch at testing; handling determines whether your vial still matches it. This guide covers the chemistry of reconstitution and storage for research peptides: lyophilization, solvent selection, storage conditions, and the degradation pathways good handling prevents.
A peptide is a short chain of amino acids joined by peptide bonds. This plain-English guide explains what peptides are made of, how they differ from proteins, why sequence determines identity, how they are synthesized, and why they are studied.
“For research use only” is a precise designation, not boilerplate. It means the product is intended strictly for laboratory research, is not a drug or supplement, and is not for consumption. Here is what the label means, why peptides carry it, and what it does not say.
A peptide purity percentage measures one specific thing: the proportion of the target compound versus related impurities. It does not confirm identity, measure contamination, or tell you how much peptide is in the vial. Here is how to read it properly.
HPLC measures purity; mass spectrometry confirms identity. They answer different questions, and a rigorous peptide certificate uses both. Here is what each method shows, what it cannot show, and how to read them together.
A Certificate of Analysis reports the identity, purity, and quality of a specific batch of research material. This in-depth guide covers every section, how to read an HPLC chromatogram, the purity-versus-content distinction, and how to spot a weak CoA.