RPL Peptide
Official Technical Documentation
Storage Guide
Storage Guide — Tirzepatide (Lyophilized)¶
Recommended Storage Conditions¶
Short-Term Storage¶
| Condition | Duration | Container |
|---|---|---|
| 2–8°C (Refrigerated) | Up to 12 months | Sealed, original vial |
| -20°C (Freezer) | 2+ years | Sealed, original vial |
| Room Temperature (15–25°C) | Up to 30 days | Sealed, desiccated |
Long-Term Storage¶
| Condition | Duration | Container |
|---|---|---|
| -20°C (Freezer) | 2+ years | Sealed, original vial, desiccated |
| -80°C (Ultra-Low) | 5+ years | Sealed, original vial |
Reconstituted Product Storage¶
| Condition | Duration | Container |
|---|---|---|
| 2–8°C (Refrigerated) | Up to 30 days | Sealed, sterile vial |
| Room Temperature | Up to 7 days | Sealed, sterile vial |
| -20°C (Aliquoted) | Up to 6 months | Sterile, low-binding tubes |
Critical Storage Rules¶
- Keep sealed — Protect from atmospheric moisture
- Protect from light — Store in original packaging or opaque container
- Control humidity — Use desiccant in storage environment if possible
- Avoid freeze-thaw — Repeated temperature cycling may degrade peptide
- Temperature stability — Avoid prolonged exposure above 25°C
Factors Affecting Stability¶
| Factor | Impact | Mitigation |
|---|---|---|
| Moisture | Promotes hydrolysis and degradation | Desiccate; keep sealed |
| Light | Photo-degradation of sensitive residues | Store in dark |
| Temperature | Accelerated degradation at elevated temp | Maintain cold storage |
| Oxidation | Oxidation of methionine, cysteine residues | Inert atmosphere if possible |
| Microbial Growth | Contamination after reconstitution | Use sterile technique |
Storage Do's and Don'ts¶
✅ Do¶
- Store in original sealed vial until use
- Allow vial to reach room temperature before opening (prevents condensation)
- Use desiccant in long-term storage
- Document storage conditions and duration
- Aliquot reconstituted peptide to avoid repeated freeze-thaw
❌ Don't¶
- Do not store near strong light sources
- Do not expose to repeated temperature fluctuations
- Do not transfer to non-sterile containers
- Do not store reconstituted peptide without proper labeling
- Do not store beyond recommended expiry date
Temperature Monitoring¶
| Equipment | Recommended Action |
|---|---|
| Refrigerator (2–8°C) | Daily temperature logging |
| Freezer (-20°C) | Weekly temperature verification |
| Ultra-Low Freezer (-80°C) | Weekly temperature verification |
| Transport | Use temperature data loggers |
Storage Troubleshooting¶
| Issue | Possible Cause | Solution |
|---|---|---|
| Cake collapse | Moisture absorption | Discard; check seal integrity |
| Discoloration | Light exposure or oxidation | Discard; protect from light |
| Insoluble after reconstitution | Improper storage | Verify storage history |
| Reduced potency | Extended storage beyond shelf life | Use within recommended period |
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Official Technical Documentation
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