Proper storage is one of the most important factors in preserving research-peptide integrity. Peptides are sensitive to heat, light, and moisture, and incorrect storage can degrade a compound before it is ever used. This guide covers general best practices for educational reference only.
Before reconstitution (lyophilized powder)
- Short term: lyophilized peptides are generally stable refrigerated (2-8°C) for limited periods.
- Long term: store at -20°C or colder. In this dry, frozen state most peptides remain stable for extended periods.
- Protect from light and moisture: keep vials sealed and away from direct light.
After reconstitution (in solution)
- Keep refrigerated (2-8°C) and use within the window appropriate to the compound.
- Reconstitute with bacteriostatic water — the benzyl alcohol provides bacteriostatic protection for multi-use handling.
- Avoid repeated freeze-thaw cycles, which can degrade peptides in solution.
General handling tips
- Allow frozen or refrigerated vials to reach room temperature before opening to reduce condensation.
- Use aseptic technique when drawing from a vial.
- Label reconstituted vials with the date.
Quality starts at the source
Storage preserves quality; it cannot create it. Always start with a compound verified by a batch-specific Certificate of Analysis. Browse research peptides with COA documentation.
For laboratory and research use only. Not for human or animal consumption. This guide is educational and is not medical advice.