Peptides are sensitive molecules that can degrade if stored improperly. The two primary enemies of peptide stability are moisture and heat.
Following proper storage protocols ensures your research compounds maintain their documented purity and activity throughout your studies.
Storage best practices
The optimal storage approach depends on whether the peptide is lyophilized (freeze-dried) or already reconstituted.
- Lyophilized peptides: store at -20C or colder. Stable for months to years when kept dry.
- Reconstituted peptides: store at 4C for short-term use (days to weeks). For longer storage, aliquot and freeze at -20C.
- Avoid repeated freeze-thaw cycles. Aliquot into single-use portions when possible.
- Keep away from direct light and moisture at all times.