Why Proper Peptide Storage Matters
Peptides are delicate molecules that can degrade quickly if not stored properly. Correct storage ensures your peptides remain potent and effective throughout their shelf life.
Storage Before Reconstitution
Lyophilized (Freeze-Dried) Peptides
Unreconstituted peptides in powder form are the most stable. Storage options:
- Freezer (-20°C / -4°F): Best for long-term storage (6-24 months)
- Refrigerator (2-8°C / 36-46°F): Good for medium-term (3-6 months)
- Room temperature: Only for short periods during shipping
Key Storage Tips for Powder
- Keep in original sealed vial
- Protect from light
- Avoid humidity and moisture
- Don't repeatedly freeze and thaw
Storage After Reconstitution
Once mixed with bacteriostatic water, peptides must be refrigerated:
| Storage Method | Shelf Life | Notes |
|---|---|---|
| Refrigerator (2-8°C) | 28-30 days | Recommended method |
| Room temperature | 24-48 hours max | Not recommended |
| Freezer | Not advised | Can damage peptide structure |
Peptide-Specific Storage Guidelines
BPC-157
- Powder: Stable at room temperature for months, refrigerator preferred
- Reconstituted: 28 days refrigerated
GLP-1 Peptides (Semaglutide, Tirzepatide)
- Powder: Refrigerator or freezer
- Reconstituted: 28-56 days refrigerated (check specific peptide)
Growth Hormone Secretagogues (Ipamorelin, CJC-1295)
- Powder: Freezer for long-term storage
- Reconstituted: 21-28 days refrigerated
Signs Your Peptide Has Degraded
Discard your peptide if you notice:
- Cloudiness or particles in solution
- Color change (should be clear)
- Unusual odor
- Reduced effectiveness over time
Best Practices Checklist
- ✅ Always use bacteriostatic water (not sterile water)
- ✅ Label vials with reconstitution date
- ✅ Use within 28-30 days of reconstitution
- ✅ Store in the back of the refrigerator (more stable temperature)
- ✅ Keep away from refrigerator light
- ✅ Use alcohol swab before each use
Track Your Peptides
Use our Peptide Fridge Tracker to monitor your reconstitution dates and expiration reminders.