GHRP-6 Acetate 5mg

GHRP-6 is one of the earliest synthetic growth hormone secretagogues, developed in the 1980s by Cyril Bowers. It is a synthetic hexapeptide that acts as a potent agonist of the ghrelin receptor (GHS-R1a) on pituitary somatotrophs. GHRP-6 was instrumental in the discovery and characterization of the ghrelin receptor system — the receptor was originally identified as the 'GHRP receptor' before its natural ligand ghrelin was discovered in 1999 by Kojima et al. GHRP-6 stimulates GH release through GHS-R1a-mediated calcium signaling in somatotroph cells. Unlike the more selective ipamorelin, GHRP-6 also significantly stimulates appetite (through hypothalamic GHS-R1a), increases ACTH and cortisol to a moderate degree, and can elevate prolactin levels. Its appetite-stimulating effect is substantial and is mediated through the same ghrelin receptor pathway that mediates natural hunger signaling. Beyond GH secretion, GHRP-6 has demonstrated cytoprotective properties. Research has shown it protects against ischemia-reperfusion injury in cardiac, hepatic, and intestinal tissues. These protective effects appear to involve upregulation of antioxidant enzymes and suppression of inflammatory signaling, and may be partially mediated through GHS-R1a-independent mechanisms.

GHRP-6 is one of the earliest synthetic growth hormone secretagogues, developed in the 1980s by Cyril Bowers. It is a synthetic hexapeptide that acts as a potent agonist of the ghrelin receptor (GHS-R1a) on pituitary somatotrophs. GHRP-6 was instrumental in the discovery and characterization of the ghrelin receptor system — the receptor was originally identified as the 'GHRP receptor' before its natural ligand ghrelin was discovered in 1999 by Kojima et al. GHRP-6 stimulates GH release through GHS-R1a-mediated calcium signaling in somatotroph cells. Unlike the more selective ipamorelin, GHRP-6 also significantly stimulates appetite (through hypothalamic GHS-R1a), increases ACTH and cortisol to a moderate degree, and can elevate prolactin levels. Its appetite-stimulating effect is substantial and is mediated through the same ghrelin receptor pathway that mediates natural hunger signaling. Beyond GH secretion, GHRP-6 has demonstrated cytoprotective properties. Research has shown it protects against ischemia-reperfusion injury in cardiac, hepatic, and intestinal tissues. These protective effects appear to involve upregulation of antioxidant enzymes and suppression of inflammatory signaling, and may be partially mediated through GHS-R1a-independent mechanisms.

Human GH stimulation studies use 1-2 mcg/kg IV or SC. Cytoprotective studies in rats use 100-400 mcg/kg. Appetite stimulation occurs at standard GH-releasing doses.

Store lyophilized (freeze-dried) powder at -20°C to 4°C in a dry environment protected from light. Unreconstituted peptide is stable for extended periods when stored properly.

Once reconstituted with bacteriostatic water or an appropriate solvent, store at 2-8°C and use within the timeframe specified on the Certificate of Analysis. Avoid repeated freeze-thaw cycles.

A Certificate of Analysis documenting purity, identity, and recommended storage conditions is included with every order.