Source comparison
PT-141 Storage: Lyophilised vs Reconstituted Comparison
Lyophilised powder (unreconstituted) −20°C (long-term), tolerate 2–8°C short-term 12–24 months at −20°C <0.5% per month at −20°C Keep sealed with desiccant; avoid moisture exposure Most stable form. Ideal for long-term storage and transport Reconstituted solut
This comparison does not assign a generated winner or score.
- Lyophilised powder (unreconstituted)
- −20°C (long-term), tolerate 2–8°C short-term
- 12–24 months at −20°C
- <0.5% per month at −20°C
- Keep sealed with desiccant; avoid moisture exposure
- Most stable form. Ideal for long-term storage and transport
- Reconstituted solution (with bacteriostatic water)
- 2–8°C (strict)
- 28–30 days refrigerated
- 0.8–1.2% per month at 2–8°C
- Never freeze after reconstitution; use within 30 days
- Requires immediate refrigeration. Thermal sensitivity increases 10–20× after mixing
- Room temperature (reconstituted)
- 20–25°C (not recommended)
- 3–5 days before significant loss
- 2–4% per day at 22°C
- Avoid entirely except during brief handling (<30 minutes)
- Unacceptable for storage. Potency loss compounds rapidly
- Elevated temperature (reconstituted)
- >25°C (shipping/summer heat)
- <48 hours before critical loss
- 5–8% per day at 30°C
- If exposure occurs, discard vial. Visual inspection cannot detect denatured peptide
- Storage failure threshold. Irreversible structural breakdown
- The comparison shows why storage discipline matters more after reconstitution than before. Lyophilised PT-141 is forgiving. You can transport it at ambient temperature for 24–48 hours without meaningful loss. Reconstituted PT-141 is unforgiving. A single overnight temperature excursion can compromise an entire batch.