A peptide vial is an airtight glass or plastic container used to store and transport dry or lyophilized peptides. It is recommended that peptides be stored in the freezer, preferably at -20degC, when not in use to preserve them for as long as possible. However, if the peptide is to be used within a short timeframe it is best to aliquot the material into smaller storage vials to minimise freeze-thaw cycles. This also allows for easy handling and reduces the amount of air exposure.

Peptide vials contain an accurately measured quantity of peptide and the peptide content is very stable at room temperature (days to weeks). To prepare a peptide solution, the peptide must be reconstituted with a solvent. The peptide vial will contain instructions on what volume of a solvent is required and this volume should be withdrawn from the vial using a sterile syringe.

To prevent bacterial contamination swab the tops of both the peptide vial and bacteriostatic water (red top) vials with alcohol prep pads. Once the surface is clean assemble a large sterile needle and syringe, insert the needle into the center ring of the water vial and withdraw the indicated amount of water as instructed on the instruction sheet.

Once the correct amount of water has been withdrawn, gently swirl the solution in the peptide vial to allow it to enter into the solid peptide until the peptide is fully dissolved. Some individuals recommend that you lightly swirl the peptide once reconstituted, however this is not necessary and can cause more harm than good.

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