What Is Ipamorelin?
Ipamorelin is a synthetic pentapeptide developed as a selective growth hormone secretagogue (GHS). It is designed to mimic ghrelin pathway signaling to stimulate growth hormone release while being discussed as having fewer off target effects than some older GHS peptides, which is why it is frequently framed as a higher tolerability option for GH axis research.
Mechanisms of Action
Stimulate the pituitary to release stored growth hormone without broadly shifting other pituitary hormones in many models
Support restoration or amplification of natural pulsatile GH release patterns
Act selectively through ghrelin receptor related pathways with less cortisol and prolactin stimulation than some other GHS peptides
Support downstream GH mediated signaling tied to recovery, metabolism, and tissue remodeling endpoints
Benefits
Lean mass and body composition support endpoints through GH pulse enhancement
Fat metabolism related signals relevant to recomp focused models
Tissue repair and recovery endpoints including injury and joint related paradigms
Collagen synthesis and skin elasticity related signals in cosmetic oriented studies
Sleep quality support signals through alignment with nighttime GH pulse architecture
Dosing
Strength | Dose |
|---|---|
Low | 100 mcg per injection, 1 time daily |
Medium | 200 mcg per injection, 1 to 2 times daily |
High | 300 mcg per injection, 1 to 3 times daily |
Dosing is typically done in a fasted state to maximize GH release signaling.
Safety Profile
Ipamorelin is often described as having a high tolerability profile among GHS peptides, with minimal reported side effects in many discussions. Potential observations include:
• Mild transient headache
• Temporary injection site redness or irritation
It is commonly described as not significantly increasing cortisol, prolactin, or hunger signaling compared with some other GH secretagogues.
Stacking
GH Pulse Synergy Stack:
CJC-1295 (No DAC or w/DAC) or Tesamorelin
Ipamorelin
Muscle Growth Stack
Ipamorelin
CJC-1295 (with or without DAC) or Tesamorelin
IGF-1 LR3
Repair & Recovery Stack
Ipamorelin
CJC-1295 (with or without DAC) or Tesamorelin
GLOW or KLOW
Glutathione
Disclaimer: The information provided is intended solely for educational purposes and should not be considered a replacement for professional medical advice. All compounds referenced are not for human consumption.







