Storage Protocols
& Preservation.

The longevity of research peptides is directly proportional to the stringency of storage conditions. In the laboratory, "ambient temperature" is the primary catalyst for degradation, necessitating precise thermal management from the moment of synthesis to the point of research application.

Lyophilized Powder Storage

For short-term usage (less than 4 weeks), lyophilized materials can be stored at refrigerated temperatures (4°C). However, for long-term preservation, materials must be kept in a manual-defrost freezer at -20°C. For more on this, read our Optimal Storage Guide.

Reconstituted Solution Stability

Once reconstituted, the stability window shrinks significantly. Solutions should be stored at 4°C and utilized within 10-14 days. Re-freezing a reconstituted solution is generally discouraged, as the formation of ice crystals can mechanically shear the peptide chains, though some institutional protocols utilize "flash-freezing" with liquid nitrogen for ultra-long-term solution storage.

Desiccation and Humidity

Lyophilized cakes are highly hygroscopic (moisture-absorbing). Vials should remain sealed until the moment of use. If vials are stored in a freezer, they must be allowed to reach room temperature before opening to prevent atmospheric moisture from condensing on the cold material, which initiates immediate hydrolytic degradation.