Ipamorelin vs CJC-1295: Growth Hormone Peptides Compared
Compare ipamorelin (GHRP) vs CJC-1295 (GHRH) for growth hormone release. How they work together, dosing protocols, and why they are commonly stacked.
| Dimension | ipamorelin | cjc-1295 | Notes |
|---|---|---|---|
| Mechanism | GHRP (ghrelin mimetic) | GHRH analog | Ipamorelin stimulates GH release via ghrelin receptor. CJC-1295 amplifies natural GHRH signaling. |
| GH Release Pattern | Pulsatile (sharp spikes) | Sustained elevation | Ipamorelin creates natural-like GH pulses. CJC-1295 (with DAC) extends GH elevation for days. |
| Cortisol Impact | No increase | No increase | Neither raises cortisol or prolactin — a key advantage over other GH secretagogues like GHRP-6. |
| Best For | Sleep + recovery | Sustained GH levels | Ipamorelin best pre-bed for sleep quality. CJC-1295 for consistent GH elevation. |
| Dosing Frequency | 2-3x daily | 1-2x daily (no DAC) or 2x/week (with DAC) | CJC-1295 with DAC needs less frequent dosing due to extended half-life. |
| Synergy | Best with CJC-1295 | Best with Ipamorelin | These two are the most commonly stacked GH peptides — GHRP + GHRH = amplified GH release. |
Learn more about each peptide
Ipamorelin
Ipamorelin is a selective growth hormone secretagogue that stimulates the pituitary gland to release growth hormone. It is considered the mildest and most selective GHRP with fewer side effects than alternatives.
CJC-1295
CJC-1295 is a synthetic analog of growth hormone-releasing hormone (GHRH) that extends the half-life of natural GH release. Often combined with ipamorelin for amplified growth hormone output.
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Reviewed by Fat Man in the Arena · Updated March 2026
Medical Disclaimer: This comparison is for informational purposes only. Individual responses vary. Always consult a qualified healthcare provider before starting any peptide protocol.