Source comparison
Tesamorelin + Ipamorelin: Storage State Comparison
Lyophilised (pre-reconstitution) −20°C (freezer) Amber vial or foil wrap required 12–24 months Residual moisture-driven hydrolysis (minimal at −20°C) This is the gold standard for long-term storage. No substitute. Peptides shipped without freezer-stable packag
This comparison does not assign a generated winner or score.
- Lyophilised (pre-reconstitution)
- −20°C (freezer)
- Amber vial or foil wrap required
- 12–24 months
- Residual moisture-driven hydrolysis (minimal at −20°C)
- This is the gold standard for long-term storage. No substitute. Peptides shipped without freezer-stable packaging lose potency during transit.
- Reconstituted (in bacteriostatic water)
- 2–8°C (refrigerator)
- Amber vial or foil wrap mandatory
- 28 days maximum
- Peptide bond hydrolysis, methionine oxidation, aggregation
- The 28-day ceiling is non-negotiable. Potency drops 10–15% by day 30 regardless of appearance. Do not extend use beyond four weeks.
- Room temperature (20–25°C)
- Not recommended
- Irrelevant. Degradation is rapid
- 24–48 hours before significant loss
- Accelerated hydrolysis, rapid aggregation
- Acceptable only for short transport between fridge and injection. Any longer exposure causes measurable loss.
- Frozen reconstituted solution
- −20°C
- Amber vial
- Ice crystal formation disrupts tertiary structure
- Freeze-thaw cycles cause 10–20% potency loss per cycle. Never refreeze reconstituted peptides.
- Refrigerator door storage
- 4–12°C (fluctuating)
- 14–21 days (reduced)
- Temperature cycling accelerates hydrolysis
- Door temperature fluctuates 4–6°C every time it opens. Store vials on middle shelf in the back where temperature is most stable.