Understand the source comparison
SS-31 Storage: Lyophilised vs Reconstituted Comparison
Lyophilised (powder) −20°C 24–36 months Yes. Amber vial or foil wrap Critical. No frost-free freezers High. Avoid repeated thaw cycles Gold standard for long-term storage. Minimal degradation if maintained at −20°C with desiccant protection. Reconstituted (bac
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Lyophilised (powder)
- −20°C
- 24–36 months
- Yes. Amber vial or foil wrap
- Critical. No frost-free freezers
- High. Avoid repeated thaw cycles
- Gold standard for long-term storage. Minimal degradation if maintained at −20°C with desiccant protection.
- Reconstituted (bacteriostatic water)
- 2–8°C
- 28 days maximum
- Yes. Protect from direct light
- Moderate. Sealed vial sufficient
- Severe. Single freeze destroys peptide
- Short working-life window. Must be used within 28 days. Temperature excursions above 8°C cause irreversible loss.
- Reconstituted (sterile water, no preservative)
- 72 hours maximum
- Not recommended for multi-dose protocols. Bacterial contamination risk rises sharply after 72 hours without benzyl alcohol.