Greater than 98.0% as determined by analysis by RP-HPLC.
His-D-Trp-Ala-Trp-D-Phe-Lys-NH2.
Growth Hormone Releasing Peptide-6 (GHRP-6) is a synthetic hexapeptide that has garnered significant attention in the fields of endocrinology and sports medicine. This peptide is known for its ability to stimulate the release of growth hormone (GH) from the pituitary gland, making it a potent growth hormone secretagogue .
GHRP-6 is composed of six amino acids, specifically L-histidyl-D-tryptophyl-L-alanyl-L-tryptophyl-D-phenylalanyl-L-lysineamide. Its molecular formula is C46H56N12O6, and it has a molar mass of 873.032 g/mol . The peptide includes unnatural D-amino acids, which contribute to its unique properties and effectiveness in stimulating GH release .
GHRP-6 functions by binding to the ghrelin receptor, also known as the growth hormone secretagogue receptor (GHSR). This receptor is naturally activated by ghrelin, a peptide hormone that stimulates hunger and regulates GH secretion . When GHRP-6 binds to GHSR, it triggers a signaling cascade that leads to the pulsatile release of growth hormone from the pituitary gland . This pulsatile release mimics the natural pattern of GH secretion in the body, enhancing its physiological effects.
The primary effect of GHRP-6 is the stimulation of growth hormone release, which has several downstream effects on the body:
GHRP-6 has been studied for its potential therapeutic applications in various conditions characterized by growth hormone deficiency. These include:
While GHRP-6 has many potential benefits, it is not without side effects. Common side effects include increased hunger, water retention, and joint pain . Additionally, the consumption of carbohydrates and dietary fats around the administration window of GHRP-6 can significantly blunt the GH release . Therefore, careful consideration of diet and timing is essential for maximizing the benefits of GHRP-6.