Do lyophilized peptides need to be protected from light?

Yes. Light, especially UV, is one of the main causes of peptide degradation. Store vials in their box or an opaque container. Heat, moisture, oxygen, and light are often called the four enemies of peptide stability, and light is one of the easiest to control.

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 storing unmixed (lyophilized) peptides. How to store the freeze-dried powder before you add any water.