Source comparison
Thymosin Alpha-1 Storage: Method Comparison
Lyophilised (before reconstitution) −20°C to −80°C 24–36 months Minimal (< 1% per year) Gold standard for long-term storage. Peptide remains stable indefinitely at −80°C Reconstituted with bacteriostatic water, refrigerated 2–8°C 28–30 days Low (2–5% per month
This comparison does not assign a generated winner or score.
- Lyophilised (before reconstitution)
- −20°C to −80°C
- 24–36 months
- Minimal (< 1% per year)
- Gold standard for long-term storage. Peptide remains stable indefinitely at −80°C
- Reconstituted with bacteriostatic water, refrigerated
- 2–8°C
- 28–30 days
- Low (2–5% per month at correct temp)
- Standard protocol for active research use. Verify refrigerator maintains range continuously
- Reconstituted with sterile water, refrigerated
- 72 hours
- Moderate (10–15% per week)
- Short-term only. Lack of preservative accelerates microbial growth and oxidative degradation
- Reconstituted and frozen (−20°C)
- −20°C
- Not recommended
- High (30–50% loss on first thaw)
- Ice crystal formation causes irreversible peptide backbone damage. Never freeze reconstituted peptides
- Room temperature storage (reconstituted)
- 20–25°C
- 4–6 hours maximum
- Severe (> 50% loss in 24 hours)
- Emergency transport only. Peptide denatures rapidly above 8°C; prolonged exposure renders batch unusable