Source comparison
TB-500 Research Heat/Cold Climate Considerations: Comparison
Lyophilised, frozen −20°C to −80°C 12–24 months Minimal if moisture <3%; ice crystal risk below −80°C without cryoprotectants Store at −20°C in airtight container with desiccant Optimal long-term storage; protects peptide structure Lyophilised, refrigerated 2–
This comparison does not assign a generated winner or score.
- Lyophilised, frozen
- −20°C to −80°C
- 12–24 months
- Minimal if moisture <3%; ice crystal risk below −80°C without cryoprotectants
- Store at −20°C in airtight container with desiccant
- Optimal long-term storage; protects peptide structure
- Lyophilised, refrigerated
- 2–8°C
- 6–9 months
- Slow hydrolysis; moisture absorption if unsealed
- Acceptable for short-term; use desiccant packs
- Viable but inferior to frozen storage
- Lyophilised, room temp
- 20–25°C
- 30–60 days
- Accelerated beta-sheet unfolding; aggregation begins
- Avoid unless shipping <48 hours with insulation
- Structural integrity compromised beyond 60 days
- Reconstituted, refrigerated
- 28 days
- Peptide bond hydrolysis; oxidation
- Standard protocol; use within 28 days
- Gold standard for reconstituted peptides
- Reconstituted, room temp
- 7–10 days
- Rapid hydrolysis; 3× faster degradation vs 4°C
- Emergency only; significant potency loss
- Avoid. Degradation too rapid for reliable research
- Reconstituted, heat exposure
- >30°C
- <48 hours
- Exponential hydrolysis; aggregation; >60% loss at 37°C for 48h
- Discard if exposed >6 hours above 30°C
- Peptide likely compromised; unreliable for assays