🧬 Peptide Storage & Reconstitution Guide

🧬 Peptide Storage & Reconstitution Guide

Peptides are widely used in research and require proper handling to maintain stability and structural integrity. This guide outlines key principles for storing and reconstituting peptides effectively.

🧊 Storage Guidelines

Peptides are typically supplied in a lyophilised (freeze-dried) form, which provides strong stability during transport.

For best results, store peptides in a refrigerator (2–8°C) for short-term use or in a freezer (-20°C) for long-term storage. Always keep vials protected from heat, moisture, and light.

Lyophilised peptides can remain stable for extended periods when stored correctly. However, once reconstituted, their lifespan is significantly reduced.

⏳ Storage Duration

Lyophilised peptides can remain stable for up to 48 months when stored at -20°C. Once reconstituted, they should generally be used within 2–8 weeks when stored at 2–8°C.

Over time, peptides naturally degrade, so proper storage is essential to maintain integrity.

💧 Reconstitution Basics

Peptides must be reconstituted before use. For best results, allow both the peptide vial and solution to reach room temperature before mixing.

Bacteriostatic water is commonly used unless otherwise required. Add the solution slowly to avoid pressure issues inside the vial.

⚖️ Pressure Equalisation

Some vials may contain pressure differences. To stabilise this, insert a sterile needle into the vial before adding solution. This allows air to balance and prevents liquid loss.

🧪 Mixing Technique

Gently swirl the vial until the peptide is fully dissolved. Avoid shaking, as this can damage the peptide structure.

If particles remain, allow additional time for dissolution.

⚠️ Important Notes

Avoid adding excessive liquid, as this can reduce stability. Store reconstituted peptides in the refrigerator and always handle under clean conditions.

📊 Using the Calculator

Use the calculator above to determine concentration, volume required, and units to draw. This helps ensure accurate and consistent measurements.

📌 Disclaimer

This calculator and guide are provided for research and educational purposes only.