Why peptides are shipped lyophilized
Lyophilization (freeze-drying) removes water from a peptide, leaving a stable powder. Without water, the reactions that break peptides down slow dramatically, which is why vials travel well across Canada.
Storing unopened vials
Keep lyophilized vials cold, dry and away from light. Refrigeration is suitable for short-term storage, and freezing is generally preferred for longer periods.
Allow a cold vial to reach room temperature before opening it, so moisture from the air does not condense inside.
After reconstitution
Once a peptide is dissolved, it becomes far less stable. Keep reconstituted solutions refrigerated, protect them from light and avoid repeated freeze-thaw cycles.
Every lot comes with a COA
Independent HPLC chromatograms and mass spectrometry from Prism Labs, Canada's independent peptide testing lab. Match your vial's lot number to its certificate.
Frequently asked questions
Should lyophilized peptides be refrigerated?
Yes. Cold, dry and dark storage helps preserve lyophilized peptides. Freezing is generally used for longer-term storage.
Can I refreeze a reconstituted peptide?
Repeated freeze-thaw cycles can degrade peptides, so they are best avoided.
For in-vitro laboratory research only. Not for human or animal use. Not approved by Health Canada for human consumption.