Handling & Reconstitution Guides

Reference information for handling lyophilised research peptides in a laboratory setting. This is general laboratory guidance for research use only — it is not medical, dosing, or administration advice.

Storage

• Store lyophilised (freeze-dried) peptides at 2–8 °C, protected from direct sunlight and moisture. For long-term storage (several months or more), −20 °C is standard practice. Sealed lyophilised peptides are stable for extended periods.
• Allow a sealed vial to reach room temperature before opening to avoid condensation.
• Once reconstituted, store refrigerated (2–8°C) and use within the period appropriate to the peptide.

Reconstitution (laboratory handling)

1. Use bacteriostatic water (0.9% benzyl alcohol) as the diluent for research handling.
2. Draw the diluent and let it run slowly down the inside wall of the vial — do not inject force directly onto the peptide powder.
3. Do not shake. Swirl gently and allow the peptide to dissolve on its own.
4. The solution should be clear. Discard if cloudy or if particulates remain.
5. Label the vial with the peptide, concentration, and reconstitution date.

Concentration reference

Concentration = peptide mass ÷ diluent volume. Example: a 5 mg peptide reconstituted with 2 mL of diluent gives 2.5 mg/mL. Adjust diluent volume to the concentration your protocol requires.

Purity and batch documentation

Purity is >99% (manufacturer’s HPLC specification). Batch documentation is available on request — message @north_vial before you order.

For laboratory research use only. Not for human or animal consumption.