Do peptides expire?

Yes. They degrade with heat, moisture, light, and time. This site already publishes that storage honesty on /faq under storing unmixed peptides and shelf life after reconstitution, rather than a single printed expiry date for every vial. Freeze-dried powder kept cold, dark, and dry is described there as lasting roughly 12 to 24 months refrigerated, or longer frozen. Once mixed with bacteriostatic water and refrigerated, the common usable window on those pages is about 28 to 30 days, tied to the preservative, not to a unique chemical clock for every sequence. A seller date stamp is not a stability trial this catalogue holds. This FAQ does not invent a new expiry number beyond those already published storage answers.

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.