Understand the source comparison
FOXO4-DRI Storage: Method Comparison
Refrigerator (main compartment) 2–8°C 30 days 98% Gold standard. Consistent temperature, minimal light exposure, maintains peptide tertiary structure Refrigerator (door shelf) 4–12°C (fluctuating) 14–21 days 85–90% Avoid. Temperature swings during door opening
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Refrigerator (main compartment)
- 2–8°C
- 30 days
- 98%
- Gold standard. Consistent temperature, minimal light exposure, maintains peptide tertiary structure
- Refrigerator (door shelf)
- 4–12°C (fluctuating)
- 14–21 days
- 85–90%
- Avoid. Temperature swings during door opening cause repeated protein stress cycles
- Room temperature (20–25°C)
- 20–25°C
- 7 days maximum
- 76% at 7 days, 50% at 14 days
- Emergency only. Use within 72 hours if refrigeration unavailable, discard after one week
- Freezer (−20°C)
- −20°C
- Not recommended
- N/A. Ice crystals destroy peptide bonds
- Never freeze reconstituted peptides. Mechanical disruption is irreversible
- Insulated travel cooler (ice packs)
- 2–10°C
- 48 hours
- 95–98% if temperature maintained
- Viable for short-term transport. Use gel packs, not loose ice (meltwater causes temperature inconsistency)