GHRP-6 is a potent stimulator of natural Growth Hormone release. GHRP-6 is a Hexa-peptide that promotes food intake by stimulating hunger and helps increase energy metabolism. Growth Hormone Releasing Peptides, similar to GHRP-6, are most commonly used for treatment of Growth Hormone (GH) deficiencies, eating disorders, obesity, etc. Research has shown that use of these HGH Peptides increases lean muscle mass, strength, stamina and decreases body fat.
GHRP-6 and the Growth Hormone Secretagogue Receptor
GHRPs are not simply surrogates of GHRH, instead GHRP-6 is an artificial activator of a separate newly discovered receptor called Growth Hormone Secretagogue Receptor (GHS-R). Soon Ghrelin was discovered, the endogenous ligand that binds to the GHS-R. Both Ghrelin and all the synthetic compounds such as GHRP-6 were termed “Growth Hormone Secretagogues” (GHSs). One side effect of GHRP-6 is a significant increase in appetite due to stimulating the release of Ghrelin, a peptide that is released naturally in the lining of the stomach that increases hunger and gastric emptying. Also, GHRP-6 causes stimulation of the anterior pituitary gland which causes an increase in Growth Hormone release. The increased amounts of Growth Hormone can cause the liver to secrete the hormone IGF-1, which improves the animal body’s ability to burn fat and build muscle. Since GHRP-6 acts directly on the feedback loop which signals the inhibition of Growth Hormone release, GHRP-6 can re-stimulate the production of Growth Hormone.