How to store research peptides correctly — lyophilised and reconstituted, temperature, light and freeze-thaw guidance to preserve purity and stability.
Peptides are sensitive molecules that can degrade when exposed to heat, moisture, light, or repeated freeze-thaw cycles. Proper storage is essential to maintain purity and ensure reliable research results. Degraded peptides can introduce variability into experiments and compromise data integrity.
Lyophilised peptides are the most stable form. Store sealed vials at -20°C for long-term storage (up to 24 months). Keep vials in a sealed container with desiccant to prevent moisture absorption. Avoid storing near the freezer door where temperature fluctuations occur. Allow vials to reach room temperature before opening to prevent moisture condensation.
Once reconstituted, peptides have a shorter shelf life. Store at 2-8°C (standard refrigerator). Use within 4-6 weeks for optimal stability. For longer storage, aliquot into single-use portions and freeze at -20°C. Avoid repeated freeze-thaw cycles — each cycle can cause degradation.
Temperature: the primary factor in peptide stability. UV Light: exposure to direct light can cause photo-oxidation of certain amino acid residues. Moisture: water can initiate hydrolysis, degrading peptide bonds. pH: extreme pH levels accelerate degradation. Contamination: microbial growth can destroy peptide samples; always use bacteriostatic water.
Store lyophilised peptides at -20°C. Use bacteriostatic water for reconstitution. Aliquot reconstituted peptides to avoid freeze-thaw cycles. Keep peptides away from direct light. Use sterile technique to prevent contamination. Label all vials with date and concentration. Allow frozen vials to equilibrate to room temperature before opening.
Determine whether your peptide is lyophilised or reconstituted, and plan storage accordingly.
Store lyophilised peptides at -20°C and reconstituted peptides at 2-8°C.
Keep peptides away from direct light and moisture. Use sealed containers with desiccant for freeze-dried peptides.
Divide reconstituted peptides into single-use aliquots to avoid damaging freeze-thaw cycles.
Record the peptide name, concentration, reconstitution date, and storage temperature on every vial.
Research-grade compounds referenced in this guide, supplied with full Certificates of Analysis.
All products sold by Neovia Peptides are strictly for in-vitro research and laboratory use only. Not intended for human or veterinary use, food additives, drugs, or cosmetics. By purchasing from this website, you agree that you understand and accept these terms.
