RESEARCH USE ONLY - Not for human or veterinary use. Supplied for lawful in vitro research and qualified laboratory investigation only. QUALITY - Peptide catalogue items are specified at ≥99% purity with batch documentation. Store lyophilised powders as directed before reconstitution. COMPLIANCE - You are responsible for lawful purchase, possession, and use in your jurisdiction, including institutional and safety requirements. SAFE HANDLING - Use trained personnel, appropriate PPE, and aseptic technique. Do not ingest, inject, or use outside a controlled research setting. POLICIES & ORDERS - Shipping, returns, and research-use terms apply to every order. Read our Shipping Policy, Returns Policy, and Research Use Policy before buying.
Home Quality Storage & Handling

Research reference

Lyophilised Peptide Storage & Handling for the Lab

Proper storage and handling preserves peptide integrity from receipt through reconstitution. This reference covers standard laboratory practice for lyophilised research peptides — always defer to the batch CoA and your institutional SOPs where they differ.

On receipt

  • Inspect outer packaging for transit damage before opening
  • Verify product name, batch number, and quantity against your order
  • Record batch numbers in your laboratory inventory log
  • Transfer to recommended storage promptly — do not leave vials at ambient temperature longer than necessary

Lyophilised (unopened) storage

Lyophilised peptides are supplied as stable, moisture-free powders. Standard recommendations:

  • Temperature: −20°C for long-term storage; short-term at 2–8°C is acceptable for many sequences if use is imminent
  • Light: protect from direct light — amber vials provide baseline protection; store in a dark freezer box where possible
  • Moisture: keep vial seals intact until reconstitution; allow vials to reach room temperature before opening to reduce condensation
  • Stability: under correct conditions, lyophilised peptides are typically stable for 24 months or longer — confirm on your CoA

Reconstitution for research use

Reconstitution solvent depends on the peptide and your protocol. Common options in research settings include bacteriostatic water (0.9% benzyl alcohol) for multi-use aliquots, sterile water, or PBS for highly soluble peptides such as GHK-Cu.

General laboratory practice:

  • Use aseptic technique in a clean environment
  • Inject solvent slowly against the vial wall — do not shoot directly onto the lyophilised cake
  • Allow dissolution by gentle swirling; avoid vigorous shaking or vortexing
  • Centrifuge briefly if droplets adhere to the stopper before use

We supply bacteriostatic water as a laboratory reconstitution supply for compatible peptides.

Reconstituted solution storage

Once reconstituted, peptide stability decreases significantly:

  • Store at 2–8°C unless your protocol specifies otherwise
  • Use within 28 days for most peptides (14 days for GHK-Cu and other copper-binding sequences)
  • Aliquot into single-use volumes to avoid repeated freeze-thaw cycles
  • Label aliquots with peptide name, concentration, reconstitution date, and expiry

Documentation

Maintain a chain-of-custody record linking each vial batch to its CoA, reconstitution date, and storage conditions. This supports reproducibility and is standard practice in regulated research environments. See how to read a CoA for batch documentation guidance.

Related guides How to read a Certificate of Analysis → Research peptide purity standards → FAQs — storage and reconstitution → Browse research peptide catalogue →