Source comparison
CJC-1295 no DAC & Ipamorelin vs Ipamorelin: Research Comparison
Before selecting a protocol, researchers need to understand how these compounds differ across key experimental variables. The table below compares receptor targets, pharmacokinetics, typical dosing ranges, and the research contexts where each approach shows st
This comparison does not assign a generated winner or score.
- Before selecting a protocol, researchers need to understand how these compounds differ across key experimental variables. The table below compares receptor targets, pharmacokinetics, typical dosing ranges, and the research contexts where each approach shows strongest performance.
- Primary Mechanism
- Selective GHSR-1a agonist (ghrelin receptor); triggers calcium-mediated GH vesicle release
- Dual pathway: GHRH analog (cAMP signaling) + GHRP agonist (calcium signaling); synergistic pituitary priming
- Combination exploits receptor convergence for multiplicative effect
- GH Pulse Duration
- 90–120 minutes post-injection
- 180–240 minutes; extended by GHRH receptor priming
- Longer AUC translates to stronger downstream IGF-1 synthesis
- Mean GH Peak (from baseline)
- 4–8× baseline (range 4–8 ng/mL from 0.5–1.0 ng/mL baseline)
- 8–15× baseline; higher amplitude due to receptor sensitization
- Peak height matters less than total exposure time for anabolic endpoints
- Cortisol/Prolactin Elevation
- None at standard doses (100–300 mcg)
- None; CJC-1295 no DAC preserves Ipamorelin selectivity
- Critical for isolating GH-specific effects without stress hormone confounds
- Typical Research Dose
- 200–300 mcg subcutaneous injection, once or twice daily
- CJC-1295 no DAC 100–200 mcg + Ipamorelin 200–300 mcg per administration
- Combination requires coordinated dosing but doesn't increase injection frequency
- Half-Life
- ~2 hours (Ipamorelin)
- CJC-1295 no DAC ~30 min; Ipamorelin ~2 hours; staggered clearance preserves pulsatility
- Short half-lives prevent receptor downregulation seen with long-acting analogs
- Reconstitution Stability
- Stable 28 days refrigerated (2–8°C) post-reconstitution
- Both peptides stable 28 days refrigerated; degradation accelerates above 25°C
- Temperature control post-reconstitution is non-negotiable for potency retention
- Best Use Case
- Acute GH response studies; selectivity profiling; short-term kinetics
- Chronic protocols measuring IGF-1, body composition, nitrogen retention, lipolysis
- Match protocol complexity to research question. Simplicity vs maximal signal