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Storage & Reconstitution

Peptide Storage & Reconstitution Guide

Amino Peptides Ltd | Research Use Only

To ensure the integrity of your research and the stability of our >98% purity peptides, proper handling is critical. Peptides are sensitive to temperature, light, and physical agitation.

1. Initial Storage (Upon Receipt)

All Amino Peptides Ltd products are shipped in a lyophilised (freeze-dried) state for maximum stability during transit.

Short-Term (Daily/Weekly) 2°C to 8°C
Long-Term (Months/Years) -20°C or -80°C

Keep vials in a dark box to prevent UV degradation.

2. The Reconstitution Process

Step A: Equilibration

Allow the vial to reach room temperature (15–20 mins) before opening to prevent moisture condensation.

Step B: Solvent Choice

  • Bacteriostatic Water: Best for research (contains preservative).
  • Sterile Water: For immediate use only.

Shop our high-purity Bacteriostatic Water →

Step C: Gentle Mixing (Critical)

  1. The "Wall" Method: Aim the needle at the inside wall of the vial. Let the liquid slide down slowly.
  2. No Shaking: Vigorous shaking causes "shearing" which denatures the protein chains.
  3. Swirling: Gently swirl in a circular motion until the solution is clear.

3. Post-Reconstitution Care

  • Must be refrigerated: Store liquid peptides at 2°C to 8°C.
  • Lifespan: Typically stable for 2 to 4 weeks when refrigerated.
  • Do Not Refreeze: Ice crystals can damage the delicate peptide structure.

4. Safety & Disposal

Ensure full PPE (Gloves and Eye Protection) is worn. Dispose of all sharps and vials according to UK hazardous waste regulations.

Frequently Asked Questions

How should unmixed (lyophilised) peptides be stored?

Unmixed research peptides should be kept out of direct sunlight and stored in a freezer at -20°C for long-term preservation. For short-term use, refrigeration at 2°C to 8°C is acceptable.

What is the recommended liquid for peptide reconstitution?

Bacteriostatic Water (BAC) containing 0.9% benzyl alcohol is the standard for reconstitution, as it prevents bacterial degradation and maintains compound stability.

How long do peptides last after being mixed?

Once reconstituted with Bacteriostatic Water, most peptide solutions remain stable for 2 to 4 weeks when stored continuously in a refrigerator at 2°C to 8°C.

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Disclaimer: Amino Peptides Ltd products are intended strictly for laboratory research and development. Not for human or veterinary use.

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