... hexanamide Firstly, to clarify this peptide, GHRP-6 is a peptide a Growth/ Hormone Releasing hexapeptide, it's a 28 amino acid peptide ... , and it works by signaling to the pituitary gland to begin secreting Growth/ Hormone. GHRP-6 ... initial injection. Well, this is caused by the GHRP-6 antagonising the peptide Ghrelin, it mimics it, but, ...