GHRP-6 vs Hexarelin
| Attribute | GHRP-6 Growth Hormone Releasing Peptide 6 | Hexarelin Hexapeptide GH secretagogue |
|---|---|---|
| Category | Muscle Growth & Performance | Muscle Growth & Performance |
| Best known for | Ghrelin-receptor GH release and appetite research | Potent GH release and cardioprotection research |
| In plain English | Same family as ipamorelin but with stronger appetite stimulation and more cross-talk (prolactin, cortisol). | 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 | Activates ghrelin receptors in the pituitary and hypothalamus, triggering GH release and strong hunger signaling. | Strongly activates GHSR and also exerts CD36-mediated cardioprotective effects. |
| Researchers study | GH release, appetite, and cachexia models. | GH secretion, cardiac tissue protection, and post-MI recovery. |
| Internet discussion | Discussed as the 'appetite GHRP' — often cited for hunger more than recovery. | Discussed for short, intense research protocols due to tolerance. |
GHRP-6
Ghrelin-receptor GH release and appetite research
Same family as ipamorelin but with stronger appetite stimulation and more cross-talk (prolactin, cortisol).
Activates ghrelin receptors in the pituitary and hypothalamus, triggering GH release and strong hunger signaling.
GH release, appetite, and cachexia models.
Discussed as the 'appetite GHRP' — often cited for hunger more than recovery.
GHRP-6 is an early-generation ghrelin mimetic researched for GH release and appetite stimulation.
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.