Understand the source comparison
IGF-1 LR3 Storage: Method Comparison
Lyophilised at −20°C (non-frost-free freezer) −18 to −22°C 12–18 months Longest shelf life; lowest degradation rate; suitable for bulk storage Requires dedicated freezer; no defrost cycle allowed Gold standard for long-term unreconstituted storage. This is wha
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- Lyophilised at −20°C (non-frost-free freezer)
- −18 to −22°C
- 12–18 months
- Longest shelf life; lowest degradation rate; suitable for bulk storage
- Requires dedicated freezer; no defrost cycle allowed
- Gold standard for long-term unreconstituted storage. This is what Real Peptides recommends for all lyophilised peptides stored beyond three months
- Lyophilised at 2–8°C (refrigerated)
- 2–8°C
- 8–12 weeks
- No freezer required; easier access for frequent use
- Shorter shelf life; higher humidity exposure risk
- Acceptable for short-term storage or when freezer access is limited. But freezing is always superior for periods beyond 12 weeks
- Reconstituted at 2–8°C (refrigerated)
- 28 days maximum
- Ready for immediate use; no thawing required
- Rapid degradation clock starts immediately; cannot be refrozen
- The only viable option once mixed. Plan your reconstitution volume carefully to avoid waste
- Room temperature (20–25°C). Unreconstituted
- 20–25°C
- 2–4 weeks
- Convenient for short-term field use
- Unacceptable degradation rate for research-grade work
- Emergency fallback only. Acceptable for transit periods under 48 hours but not for intentional storage
- Frozen reconstituted solution
- < 0°C
- Not recommended
- None. This method damages peptide structure
- Ice crystal formation physically shears peptide chains; 30–50% potency loss after single freeze-thaw
- Hard reject. Never freeze reconstituted peptides under any circumstance