Peptide Storage Guide

Storing research peptides

Correct storage preserves peptide stability and purity. Requirements differ between unopened lyophilized vials and reconstituted solutions.

Lyophilized (powder) peptides

• Short term (weeks): cool, dry, dark — a fridge at 2–8°C is ideal.
• Long term (months+): sealed in a freezer at -20°C or below.
• Keep away from light, heat and humidity at all times.

Reconstituted peptides

• Always refrigerate at 2–8°C once mixed.
• Use within the stability window for that compound — typically a few weeks.
• Avoid repeated freeze-thaw cycles, which degrade peptides.

General tips

• Label vials with reconstitution date and concentration.
• Minimise time at room temperature.
• Transport cold where possible.

Storage guidance is provided for laboratory handling of research reagents only.