Peptides are delicate molecules, and correct storage is essential to preserving their integrity for research. This guide covers the key principles for storing both lyophilised (freeze-dried) and reconstituted research peptides in a laboratory setting.
Lyophilised (freeze-dried) peptides
In powder form, peptides are at their most stable:
- Keep cold: store in a freezer, typically around −20°C, for long-term stability.
- Keep dry: moisture is a primary cause of degradation. Keep vials sealed.
- Keep dark: protect from prolonged light exposure.
Reconstituted peptides
Once reconstituted for research, the stability window shortens:
- Store refrigerated, typically around 2–8°C.
- Use within a shorter timeframe than powder.
- Avoid repeated freeze-thaw cycles.
General handling
Allow frozen vials to return to room temperature before opening to prevent condensation. Follow standard laboratory handling practice and label vials clearly with contents and date.
A note on shelf life
Properly stored lyophilised peptides can remain stable for extended periods. The Certificate of Analysis and batch information supplied with each order help you track material from the point it was tested.
All Peptide Pal research peptides ship as lyophilised powder with a Certificate of Analysis.
⚖ All products are supplied for laboratory research use only and are not for human or animal consumption.