Peptide Storage Cheat Sheet · The Peptide Lab

Peptide Storage Cheat Sheet

Save this. Screenshot it. Tape it to your fridge. Whatever works.

BEFORE RECONSTITUTION (Lyophilized Powder)

• Short-term (under 1 month): Refrigerator (2-8°C / 36-46°F)

• Long-term (1+ months): Freezer (-20°C / -4°F)

• Extended storage (6+ months): Deep freezer (-20°C or colder)

• Shelf life: 12-24 months if stored properly

• Light exposure: Keep in original packaging or wrap in foil

• Humidity: Keep sealed; desiccant packs help

Lyophilized peptides are surprisingly stable when kept cold and dry.

AFTER RECONSTITUTION (In Solution)

• Storage: Refrigerator ONLY (2-8°C / 36-46°F)

• With BAC water: Good for 28-30 days

• With sterile water: Use within 24-48 hours

• Freezing: Do NOT freeze reconstituted peptides

• Light exposure: Keep in box or wrap vial in aluminum foil

• Between uses: Return to fridge immediately after drawing

Never leave a reconstituted vial out at room temperature for more than the time it takes to draw your dose.

THE 5 RULES

1. Cold. Always.

2. Dark. Always.

3. Dry. Before reconstitution.

4. Sterile. After reconstitution.

5. Don't freeze reconstituted peptides. Ever.

When in doubt: colder and darker is better.

— Marcus

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