Peptides are biological chains of amino acids. Like food, they can degrade due to heat, light, and moisture. Proper storage is the only way to ensure your research yields consistent results from the first dose to the last. See our peptide reconstitution guide for the start of the process.
Phase 1: Lyophilized Powder (Before Mixing)
In this state, the peptide is freeze-dried and relatively stable.
- Long Term (> 1 Month): Store in the Freezer (-20°C). This stops almost all degradation. Vials can last years.
- Short Term (< 1 Month): A cool, dark cupboard or Refrigerator (2-8°C) is fine.
- Shipping: Do not panic if your package arrives warm. Studies show most peptides remain stable at room temperature for weeks in powder form.
Phase 2: Reconstituted Solution (After Mixing)
Once water is added (usually bacteriostatic vs sterile water), the clock starts ticking. The peptide bonds become fragile.
Crucial Rule: Never freeze a peptide after it has been mixed with water. The formation of ice crystals destroys the molecular structure.
- Mandatory: Store in the Refrigerator (2-8°C).
- Light: UV light destroys peptides. Keep the vial in its box or a specialized case inside the fridge.
- Motion: Avoid storing it in the fridge door where it will be shaken every time the door opens. The back of a shelf is best.
Specific peptides like TB-500 may have specific needs; check the TB-500 reconstitution guide. Visualizing adherence via visualizing dosing charts can help spot if degradation (lack of effect) is occurring. Always back up your logs—see exporting research data (JSON).