Source comparison
Tesamorelin + Ipamorelin Blend Storage: Lyophilised vs Reconstituted Comparison
Understanding the distinct storage requirements for lyophilised versus reconstituted peptide forms is essential for maintaining compound stability and research validity. Lyophilised (unreconstituted) powder −20°C or colder (−4°F) 12–24 months Humidity, thermal
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- Understanding the distinct storage requirements for lyophilised versus reconstituted peptide forms is essential for maintaining compound stability and research validity.
- Lyophilised (unreconstituted) powder
- −20°C or colder (−4°F)
- 12–24 months
- Humidity, thermal cycling, oxidation
- No. Degradation is cumulative
- Most stable form; short-term ambient exposure (48–72 hrs at ≤25°C) tolerable for shipping but not ideal
- Reconstituted solution (with bacteriostatic water)
- 2–8°C (36–46°F), never freeze
- 28 days maximum, 21 days preferred
- Temperature excursions above 8°C, light, mechanical agitation, freezing
- No. Thermal denaturation is irreversible
- Use within 21 days for optimal potency; datalogger monitoring essential for high-value research
- Ambient temperature exposure (reconstituted)
- 20–25°C (68–77°F)
- Degradation begins immediately; avoid exceeding 2 hours cumulative
- Exponential degradation rate increase (~2× per 10°C rise)
- No. Hours of warm exposure = days of degradation compressed
- Emergency only; if unavoidable, document exposure duration and flag vial for exclusion from critical experiments
- The lyophilised form's resilience makes it the preferred state for procurement, long-term storage, and transport. Reconstitute only the quantity needed for near-term use. A common mistake is reconstituting an entire 10mg vial when only 2–3mg will be used within the 28-day window. The remaining 7–8mg degrades unused. If your research protocol spans months, purchase multiple smaller vials rather than one large vial and reconstitute sequentially.