What is the shelf life of peptides?

There is no one shelf life for the category. This site's existing storage answers already say the useful split is unmixed powder versus mixed solution. Lyophilized peptides, stored properly, are described as lasting roughly 12 to 24 months in the fridge and often two years or more frozen. After reconstitution with bacteriostatic water, the common refrigerated window is about 28 to 30 days, because that is how long the preservative is trusted, not because every peptide chemically dies on day 29. Chemical stability still varies by sequence. When a specific compound page publishes a different figure, that page wins. This FAQ does not invent a new clock. Full storage answers start at /faq/how-long-do-lyophilized-peptides-last-before-reconstitution.

Educational use only. This database summarizes published research and is not medical advice. Where a dose appears it is a record of what a trial or clinic ran, or what people describe doing, with its source attached. Nothing here is a recommendation for personal use.

Part of research peptides, the category. What research peptides are, legally and practically, before getting into specific compounds.