Understand the source comparison
Semax Amidate Storage Conditions: Comparison by Form and Timeframe
Lyophilized (unreconstituted) −20°C (freezer) 12–24 months Minimal impact when sealed Gold standard for long-term storage. Sub-zero temperature halts hydrolysis and oxidation Lyophilized (short-term holding) 2–8°C (refrigerator) 2–4 weeks Keep in original pack
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Lyophilized (unreconstituted)
- −20°C (freezer)
- 12–24 months
- Minimal impact when sealed
- Gold standard for long-term storage. Sub-zero temperature halts hydrolysis and oxidation
- Lyophilized (short-term holding)
- 2–8°C (refrigerator)
- 2–4 weeks
- Keep in original packaging
- Acceptable for transit or brief holding before reconstitution. Not recommended for months
- Reconstituted with bacteriostatic water
- 28 days maximum
- Must be protected (foil wrap)
- The 28-day limit is firm. Potency drops sharply beyond this window even with perfect refrigeration
- Reconstituted (room temperature)
- 20–25°C (ambient)
- 4–6 hours before degradation begins
- Accelerates photodegradation
- Unacceptable for storage. Use immediately if left at room temperature during dose preparation
- Reconstituted (frozen)
- Not recommended
- N/A
- Freezing reconstituted peptides causes ice crystal formation that physically disrupts peptide structure