Understand the source comparison
How to Store Klow Long Term: Research Peptide Comparison
Lyophilised (unopened) −20°C 12–24 months Minimal if moisture-free Best long-term option. Freeze-drying removes water that accelerates breakdown Reconstituted (bacteriostatic water) 2–8°C 28 days Low under strict refrigeration Use within four weeks. Hydrolysis
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Lyophilised (unopened)
- −20°C
- 12–24 months
- Minimal if moisture-free
- Best long-term option. Freeze-drying removes water that accelerates breakdown
- Reconstituted (bacteriostatic water)
- 2–8°C
- 28 days
- Low under strict refrigeration
- Use within four weeks. Hydrolysis accelerates after day 28
- Room temperature (20–25°C)
- Not recommended
- <2 hours
- Moderate to high
- Acceptable only during dose preparation. Return to fridge within 60 seconds
- Frozen (reconstituted)
- −20°C or below
- Never freeze reconstituted peptides
- Severe. Ice crystals denature protein
- Freezing reconstituted peptides destroys tertiary structure irreversibly
- Light exposure (any phase)
- Any temperature
- Cumulative
- Moderate. Photodegradation
- Store in amber vials or wrap in foil to block UV and visible light