GHRP-6 is a synthetic hexapeptide GHSR-1a agonist and one of the first synthetic growth hormone releasing peptides developed, with a research history spanning over three decades. Distinguished from GHRP-2 by its stronger appetite-stimulating effects via ghrelin receptor activation, GHRP-6 is used as a reference compound in GHSR pharmacology and in research exploring the intersection of GH secretion and appetite regulation.
GHRP-6 Research Background
GH secretion and ghrelin mimicry: GHRP-6 was developed in the original research programme that identified the GHSR-1a receptor. As a ghrelin mimetic, it produces potent GH release alongside appetite-stimulating effects characteristic of endogenous ghrelin — notably stronger than GHRP-2 or Ipamorelin, making it specifically useful for research examining the ghrelin axis, appetite regulation, and related metabolic pathways.
Gastric motility research: Given ghrelin’s established role in gastric motility, GHRP-6 has been studied in models of gastrointestinal function including gastroparesis and intestinal motility research.
Wound healing and cytoprotection: Beyond GH secretion, GHRP-6 has been studied in preclinical models for cytoprotective effects in cardiac, hepatic, and wound healing contexts — research overlapping with GHRP-2 literature on GHSR-independent protective mechanisms.
GHRP Selectivity Comparison
| Compound | GH Release | Cortisol Effect | Appetite Stimulation |
|---|---|---|---|
| Ipamorelin | Strong | Minimal | Minimal |
| GHRP-2 | Very strong | Moderate | Moderate |
| GHRP-6 | Strong | Moderate | Strong |
Reconstitution & Storage
Reconstitute with BAC water. Concentration: 1mg/ml to 2mg/ml.
Lyophilised: 2–8°C | Reconstituted: 2–8°C up to 28 days | Long-term: -20°C
Peptide Reconstitution Calculator
99%+ purity, HPLC verified. CoA available on request. Domestic AU dispatch.
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