Peptide Handling & Storage Guidelines – BioPulse Peptides
Proper storage and handling are essential for maintaining the stability, integrity, and research value of your peptides. Follow the guidelines below to ensure optimal conditions for both lyophilized peptides and reconstituted solutions.
Storing Lyophilized (Powder) Peptides
Lyophilized peptides are generally stable if kept in the correct environment.
Recommended storage conditions:
- Store in a cool, dry place away from direct sunlight, heat, and moisture.
- Keep the vial in a shaded, stable-temperature environment.
- Avoid locations with excessive humidity or frequent temperature changes.
Properly stored lyophilized peptides maintain their stability significantly longer than reconstituted solutions.
Reconstitution Guidelines
When preparing peptides for research purposes:
- Use room-temperature bacteriostatic water or your chosen research solvent.
- Do not shake the vial aggressively — this may damage peptide structure.
- Instead, gently roll or swirl the vial until the powder fully dissolves.
- Allow the solution to settle naturally if foaming occurs.
Gentle handling preserves peptide integrity and ensures proper reconstitution.
Storage After Reconstitution
Once a peptide has been reconstituted:
- Store the vial in the refrigerator (typically 2–8°C).
- Do not freeze reconstituted peptides, as freezing can compromise stability.
- Avoid repeated warming and cooling cycles — temperature fluctuations accelerate degradation.
- Always keep the vial sealed and protected from light.
Shelf Life After Reconstitution
The stability of a reconstituted peptide depends on the peptide’s structure and fragility.
While there is no exact universal expiration date, most peptides gradually lose potency over time.
General research guideline:
- Use within 28–56 days after reconstitution for optimal consistency.
Fragile peptides may degrade more quickly, while more stable structures may last longer under proper refrigeration.