Mechanism Comparison Factor CJC-1295 + Ipamorelin HGH (Somatropin) Approach Stimulates endogenous GH production Replaces GH with exogenous protein Pituitary involvement Required pituitary manufactures and releases GH Bypassed GH delivered directly Feedback loop Preserved somatostatin still regulates GH levels Suppressed exogenous GH downregulates natural production GH release pattern Pulsatile, mimics natural circadian rhythm Spike-and-decline, non-physiological Receptor targets GHRH-R (CJC-1295) + GHS-R1a (Ipamorelin) GH receptor directly (no pituitary signaling) Molecular size CJC-1295: 29 AA (~3,368 Da) / Ipamorelin: 5 AA (~712 Da) 191 amino acids (~22,124 Da) The Pituitary Feedback Question This is arguably the most important mechanistic difference for researchers to understand
After initial dissolution in acetic acid water, the stock solution is typically further diluted with bacteriostatic water or PBS
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Ipamorelin is supplied strictly for laboratory research use only
Injection Timing & Technique When you inject IGF-1 LR3 matters almost as much as how much you inject
MAR, Medically Assisted Reproduction