Understand the source comparison
VIP Storage: Protocol Comparison
Pre-Reconstitution (Lyophilised) −20°C in rear center of freezer, sealed desiccant bag Door rack storage, frost-free cycling near defrost coils Moisture absorption, peptide hydrolysis, 10–15% potency loss per month Store in rear center only. Use continuous tem
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Pre-Reconstitution (Lyophilised)
- −20°C in rear center of freezer, sealed desiccant bag
- Door rack storage, frost-free cycling near defrost coils
- Moisture absorption, peptide hydrolysis, 10–15% potency loss per month
- Store in rear center only. Use continuous temp logger with −18°C alarm threshold.
- Reconstitution Process
- Inject bacteriostatic water down vial side, swirl gently, return to 2–8°C within 5 min
- Direct injection onto cake, vortex mixing, 15+ min bench time
- Foam generation denatures 20–30% of peptide immediately, shear forces fragment structure
- Never vortex peptides. Never leave reconstituted vials at room temp beyond 5 min.
- Post-Reconstitution Storage
- 2–8°C refrigerator, aliquoted into single-use cryovials, use within 28 days
- Storing in original vial, repeated freeze-thaw, >28 day use
- Aggregation, oxidation, bacterial contamination, assay irreproducibility
- Aliquot immediately. One freeze-thaw cycle max per aliquot. Discard after 28 days.
- Transport Between Bench and Fridge
- Insulated cooler with gel packs, <5 min transport time, pre-chilled tubes
- Carrying vials in hand, 10+ min bench exposure during prep
- Temperature rise to 18–22°C within 10 min, 15–25% degradation
- Use a benchtop mini-fridge or insulated cooler for any transport >2 min.