Ipamorelin vs Hexarelin
Selective GHRP vs strong GHRP with cortisol/prolactin rise.
| Attribute | Ipamorelin Selective GH secretagogue | Hexarelin Hexapeptide GH secretagogue |
|---|---|---|
| Category | Muscle Growth & Performance | Muscle Growth & Performance |
| Best known for | Clean growth hormone pulse research | Potent GH release and cardioprotection research |
| In plain English | Researchers like ipamorelin because it gives a clean GH pulse without raising cortisol or prolactin — making it the most-discussed 'starter' GH peptide. | The strongest GH-pulse peptide of the classic GHRPs — but also the one most likely to raise prolactin and cortisol, and develop tolerance. |
| How it works | Selectively activates the GHSR receptor, stimulating pulsatile growth hormone release from the pituitary. | Strongly activates GHSR and also exerts CD36-mediated cardioprotective effects. |
| Researchers study | GH secretion, IGF-1 elevation, body composition, and sleep quality. | GH secretion, cardiac tissue protection, and post-MI recovery. |
| Internet discussion | The default beginner GH peptide on forums. Discussed for sleep, recovery, and lean gains. | Discussed for short, intense research protocols due to tolerance. |
Ipamorelin
Clean growth hormone pulse research
Researchers like ipamorelin because it gives a clean GH pulse without raising cortisol or prolactin — making it the most-discussed 'starter' GH peptide.
Selectively activates the GHSR receptor, stimulating pulsatile growth hormone release from the pituitary.
GH secretion, IGF-1 elevation, body composition, and sleep quality.
The default beginner GH peptide on forums. Discussed for sleep, recovery, and lean gains.
Ipamorelin is the cleanest of the GH secretagogues, producing GH pulses without significant cortisol or prolactin increase.
Hexarelin
Potent GH release and cardioprotection research
The strongest GH-pulse peptide of the classic GHRPs — but also the one most likely to raise prolactin and cortisol, and develop tolerance.
Strongly activates GHSR and also exerts CD36-mediated cardioprotective effects.
GH secretion, cardiac tissue protection, and post-MI recovery.
Discussed for short, intense research protocols due to tolerance.
Hexarelin is the most potent classic GHRP with notable cardioprotective research signals.