Source comparison
How to Store Melanotan-1 Long Term: Storage Conditions Comparison
Lyophilized, sealed vial −20°C (standard freezer) 18–24 months 12 months 2–8°C (refrigerator) 6–9 months 1
This comparison does not assign a generated winner or score.
- Lyophilized, sealed vial
- −20°C (standard freezer)
- 18–24 months
- <5% potency loss over 2 years
- Moisture intrusion, freeze-thaw cycles
- Gold standard for long-term preservation. Use vacuum-sealed secondary packaging for >12 months
- 2–8°C (refrigerator)
- 6–9 months
- 10–15% potency loss over 9 months
- Humidity exposure, container seal integrity
- Acceptable for working stock if turnover is <6 months
- 20–25°C (room temperature)
- 60–90 days
- 30–40% potency loss over 3 months
- Heat exposure, light exposure, moisture
- Not recommended. Use only for immediate short-term applications
- Reconstituted in bacteriostatic water
- 28 days
- 15–20% potency loss after 4 weeks
- Temperature excursions, bacterial contamination, oxidation
- Standard use window. Discard after 28 days regardless of appearance
- −20°C (frozen)
- Not recommended
- 40–60% potency loss per freeze-thaw cycle
- Ice crystal shearing, aggregation
- Never refreeze reconstituted peptides
- 12–24 hours
- Rapid degradation. 50%+ loss within 48 hours
- Bacterial growth, oxidation, aggregation
- Emergency short-term only. Peptide becomes unusable within days