Peptide integrity depends heavily on correct storage and handling. This overview covers good-laboratory-practice principles for storing lyophilised research peptides and handling them in a laboratory setting.
Storing lyophilised (powder) peptides
- Store the sealed, lyophilised vial frozen (typically -20°C or colder) for long-term stability.
- Protect from light and moisture.
- Allow the vial to reach room temperature before opening to avoid condensation.
Why cold-chain matters
Peptides can degrade if exposed to heat during transit. Cold-chain dispatch protects the compound from the point of shipping to delivery, preserving its verified purity. All our orders are dispatched cold-chain across South Africa.
After reconstitution
- Reconstituted material should be kept refrigerated and used within the timeframe appropriate to the compound.
- Avoid repeated freeze-thaw cycles, which accelerate degradation.
- Label reconstituted vials with date and concentration for traceability.
General good practice
- Keep detailed lot and handling records.
- Work in a clean laboratory environment.
- Follow your institution's standard operating procedures.
This information is general laboratory guidance for research handling only. For laboratory research use only — not for human or veterinary consumption.