Proper storage conditions to maintain peptide integrity and stability for research applications.
Lyophilized (Powder) Storage
- Short-term (weeks): 4°C (refrigerator), protected from light and moisture
- Long-term (months-years): -20°C to -80°C freezer
- Keep desiccated (dry) — moisture is the primary degradation factor
- Avoid repeated freeze-thaw cycles of powder
Reconstituted (Solution) Storage
- Store at 2-8°C (refrigerator)
- Use within 30 days for most peptides
- Bacteriostatic water (containing 0.9% benzyl alcohol) preferred over sterile water for multi-use reconstitution
Degradation Factors
- Heat: Accelerates deamidation and oxidation
- Light: UV exposure causes photo-oxidation of susceptible residues (Trp, Tyr, Met)
- Moisture: Promotes hydrolysis of peptide bonds
- pH extremes: Both very acidic and very alkaline conditions accelerate degradation
Research Disclaimer
This article is compiled from peer-reviewed research and publicly available scientific literature. It is intended for educational and informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional before making health-related decisions.