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How to Reconstitute Lyophilized Peptides If you’ve ever opened a peptide vial and wondered why it appears to contain a tiny amount of white powder—or sometimes almost nothing at all—you are looking at a lyophilized peptide. Lyophilization, also called freeze-drying, removes water from a peptide preparation so the material can be stored in a dry […]

Cold Chain & Peptide Stability: How to Store Research Peptides Peptide stability sounds complicated, but the basic principle is simple: Dry peptides are generally more stable than peptides in solution. That means storage requirements change once a lyophilized peptide has been reconstituted. Storage Rule of Thumb For most research peptides, the simple version is: Before […]

How to Read a Peptide Certificate of Analysis A Certificate of Analysis, commonly called a COA, is one of the most useful tools for evaluating a research peptide. But simply seeing the words “third-party tested” or “99% pure” does not tell the whole story. A meaningful peptide COA should help answer several different questions about […]