Understand the source comparison
How to Store KPV Long Term: Storage Phase Comparison
Lyophilized (pre-reconstitution) −20°C (standard freezer) 12–24 months per manufacturer spec Original sealed vial, vacuum or inert gas Freeze-thaw cycling in frost-free freezers, shipping heat exposure Most stable phase. Proper freezer storage preserves full p
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Lyophilized (pre-reconstitution)
- −20°C (standard freezer)
- 12–24 months per manufacturer spec
- Original sealed vial, vacuum or inert gas
- Freeze-thaw cycling in frost-free freezers, shipping heat exposure
- Most stable phase. Proper freezer storage preserves full potency for 1–2 years; insulate vials in frost-free units
- Reconstituted (in bacteriostatic water)
- 2–8°C (refrigerator)
- 28 days maximum
- Original vial with rubber stopper, upright in labeled container
- Temperature excursions during handling, storage in refrigerator door, exceeding 28-day window
- Degradation clock starts at reconstitution; strict 28-day limit is non-negotiable regardless of appearance
- Transport (lyophilized)
- Ambient up to 25°C tolerated
- 24–48 hours
- Insulated shipping box with temperature buffer
- Prolonged high heat (>30°C), direct sunlight, moisture exposure
- Short-term ambient tolerance allows safe shipping but requires immediate −20°C storage upon arrival
- Transport (reconstituted)
- 2–8°C maintained
- 36–48 hours with proper cooling
- Medical-grade peptide cooler (FRIO or equivalent)
- Standard coolers warm above 8°C within 6 hours; ice contact causes thermal shock
- Requires purpose-built cooling system. Standard lunch coolers and hotel minibars are inadequate