Source comparison
CJC-1295 No DAC: Reconstitution, Dosing & Shelf Life Comparison
Lyophilised (unopened) −20°C 6–12 months Moisture infiltration if seal compromised Freezer storage is non-negotiable for long-term viability; even brief periods at room temp consume stability budget 2–8°C 2–3 months Accelerated hydrolysis and oxidation in soli
This comparison does not assign a generated winner or score.
- Lyophilised (unopened)
- −20°C
- 6–12 months
- Moisture infiltration if seal compromised
- Freezer storage is non-negotiable for long-term viability; even brief periods at room temp consume stability budget
- 2–8°C
- 2–3 months
- Accelerated hydrolysis and oxidation in solid state
- Acceptable for short-term storage but cuts shelf life by 50–75% vs freezer
- Lyophilised (opened/punctured)
- 3–6 months
- Moisture ingress through compromised stopper
- Each needle puncture increases contamination risk; subdivide into aliquots if possible
- Reconstituted
- 28 days
- Hydrolysis, oxidation, deamidation in aqueous phase
- Standard stability window; mark reconstitution date on vial label immediately
- Room temp (20–25°C)
- 24–48 hours
- Exponentially faster degradation at higher temperatures
- Emergency only; potency loss begins within hours
- Reconstituted (frozen)
- Not recommended
- Ice crystal shear forces denature protein structure
- Cryoprotectants required; not practical for routine research use
- This table reflects stability data from USP peptide monographs and third-party stability studies conducted on GHRH analogs. Individual results may vary based on specific manufacturing processes, excipients used, and storage container quality (borosilicate glass vs plastic, stopper material composition). When in doubt, err toward shorter shelf life estimates. Peptide degradation produces inactive fragments that can interfere with receptor assays and introduce confounding variables into dose-response studies.