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How-to 4 min read2026-07-04

Peptide storage best practices

How to store lyophilized and reconstituted reference peptides to preserve them for laboratory research.

By Peptide Cyprus

Key takeaways

  • Lyophilized: store at −20 °C, protected from light, sealed.
  • Reconstituted: refrigerate at 2–8 °C, protected from light.
  • Label with concentration and date; avoid temperature cycling and shaking.

Lyophilized storage

A sealed, lyophilized reference peptide is most stable frozen. Store at −20 °C, protected from light, in its original sealed vial. Avoid repeated temperature cycling.

After reconstitution

Once dissolved in bacteriostatic water, keep the vial refrigerated at 2–8 °C and protected from light. Label it with the concentration and reconstitution date, and minimise the time it spends at room temperature.

General handling

Use clean technique, avoid shaking, and keep the vial upright. Discreet, light-protected packaging on delivery is designed to preserve the material in transit — continue that care in the lab.

Frequently asked

Handling and stability vary by compound and protocol. Store refrigerated, protected from light, and follow your laboratory’s procedures.

Research use only. This reference material is for in-vitro laboratory research. Not for human or animal consumption.

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