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Storage Guide
Lyophilized Peptides
| Ideal Storage | -20°C (freezer) |
| Acceptable Short-Term | 2-8°C (refrigerator) |
| Stability at -20°C | 24+ months |
| Light Exposure | Protect from light |
Peptides in Solution
| Required Storage | 2-8°C (refrigerator) |
| Recommended Use | Within 28 days |
| Freeze-Thaw Cycles | Avoid – causes degradation |
| Light Exposure | Keep in dark or amber vial |
Storage Tips
- Upon receipt: Transfer lyophilized peptides to freezer (-20°C) for long-term storage, or refrigerator if using within a few weeks.
- Temperature equilibration: Allow the vial to reach room temperature before opening to prevent condensation inside the vial.
- Solutions: Return to refrigeration promptly. Stability degrades at ambient temperature.
- Keep away from: Direct sunlight, heat sources, and areas with temperature fluctuations.
- Label your vials: Record the lot number and receipt date on each vial for traceability.
💡 Pro Tip
Peptides in solution show measurably reduced stability beyond ~28 days under refrigeration. The lyophilized form is substantially more stable, so material is best retained as powder until required for analysis.