Research & development use only — Not for human consumption of any kind
Storage & Handling Guide
Lyophilized (Unreconstituted) Peptides
Lyophilized peptides are freeze-dried powders with excellent long-term stability when stored correctly. Follow these guidelines to maintain compound integrity:
- ✓Store at -20°C or below
- ✓Protect from light and moisture at all times
- ✓Shelf life: 24+ months when stored properly
- ✓Keep sealed in original packaging until ready for use
- ✓Allow vial to reach room temperature before opening to prevent moisture condensation on the lyophilized powder
Reconstituted Peptides
Once reconstituted, peptide solutions are less stable than their lyophilized form and require careful handling:
- ✓Store at 2–8°C (standard laboratory refrigerator)
- ✓Use within 30 days of reconstitution
- ✓Label each vial with: compound name, concentration, date of reconstitution, and initials
- ✓Do not refreeze reconstituted solutions
Shipping & Receiving
Upon receiving your order:
- •Inspect packaging integrity — ensure the outer box is undamaged
- •Check that all vial seals are intact and show no signs of tampering
- •Store immediately per the guidelines above based on compound form
- •If packaging appears compromised or vial seals are broken, contact support before use
Environmental Considerations
Maintaining a controlled environment during handling is critical for preserving peptide integrity and ensuring reliable experimental outcomes:
- •Avoid repeated freeze-thaw cycles — aliquot reconstituted solutions when possible
- •Minimize light exposure during handling; work under subdued lighting
- •Work in a clean, temperature-controlled environment to reduce contamination risk
- •Use calibrated equipment for all volume transfers to maintain concentration accuracy
Stability Indicators
Visual inspection can help identify compromised compounds. Know what to look for in each form:
Lyophilized
Should appear as a white to off-white powder or cake. Discard if the powder appears discolored (yellow, brown, or gray) or shows signs of moisture absorption (wet, sticky, or clumped material).
Reconstituted
Solution should be clear and colorless upon proper reconstitution. Discard if the solution appears cloudy, contains visible particulate matter, or shows discoloration. These may indicate degradation, contamination, or aggregation.
Research Use Only
All storage and handling guidelines are provided for in-vitro laboratory research purposes only. These guidelines are not intended as instructions for human or veterinary use. Researchers are responsible for following all applicable institutional and regulatory protocols.