Ipamorelin vs GHRP-6: Research Comparison
A Side-By-Side Research Comparison Of Ipamorelin And GHRP-6 - a selective versus a first-generation ghrelin-receptor secretagogue. This Reference Compares Mechanism, Evidence Tier, Molecular Identity, And Pharmacokinetics For Qualified Researchers. For In Vitro Laboratory Research Use Only. Not Medical Advice Or Dosing Guidance.
Side-By-Side Comparison
| Ipamorelin | GHRP-6 | |
|---|---|---|
| Category | Muscle Growth & Performance | Muscle Growth & Performance |
| Compound Class | Selective synthetic pentapeptide GH secretagogue (GHRP); minimal cortisol/prolactin side effects | Synthetic hexapeptide GH secretagogue (GHRP); first-generation ghrelin mimetic |
| Evidence Tier | Research Compound | Research Compound |
| Molecular Target | GHS-R1a (ghrelin receptor) agonist; highly selective for pituitary GH release without significant ACTH/cortisol elevation | GHS-R1a (ghrelin receptor) agonist; stimulates pituitary GH release and endogenous ghrelin; strong appetite/hunger signal |
| Molecular Weight | 711.85 Da | 873.01 Da |
| Amino Acid Sequence | Aib-His-D-2-Nal-D-Phe-Lys-NH2 | His-D-Trp-Ala-Trp-D-Phe-Lys-NH2 |
| CAS Number | 170851-70-4 | 87616-84-0 |
| Half-Life | ~2 hours | ~2.5 hours |
| Studied For | GH secretagogue research, Anti-aging / longevity via GH axis, Body composition improvement, Lean muscle gain | GH release stimulation, Appetite stimulation / hunger research, GI motility research, GH secretagogue research |
About Ipamorelin
A selective, clean growth-hormone-releasing peptide; banned in sport.
Read The Full Ipamorelin MonographAbout GHRP-6
The original growth-hormone-releasing peptide; strong appetite effect; banned in sport.
Read The Full GHRP-6 MonographKey Differences
- Reported half-life differs: Ipamorelin at ~2 hours versus GHRP-6 at ~2.5 hours.
- Primary molecular target differs: Ipamorelin acts on GHS-R1a (ghrelin receptor) agonist; highly selective for pituitary GH release without significant ACTH/cortisol elevation; GHRP-6 acts on GHS-R1a (ghrelin receptor) agonist; stimulates pituitary GH release and endogenous ghrelin; strong appetite/hunger signal.
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This Comparison Is Provided For In Vitro Laboratory Research Use Only. Not For Human Consumption, Diagnosis, Or Treatment. See The Full Research Disclaimer.