Store Lyophilized Peptides at -20°C or -80°C, most lyophilized peptides can remain stable for months to years, depending on the peptide sequence and storage environment.
Peptide solutions are generally less stable than lyophilized powder, so long-term storage in solution is not recommended unless necessary. After dissolving, it is recommended to store the peptide as aliquots at -20°C or -80°C, avoid repeated freeze-thaw cycles.