[D-Lys3]-GHRP6 (growth hormone releasing peptide 6) induces the secretion of growth hormone (GH). In the membrane of clonal GC somatotropes, this peptide elevates the number of functional voltage-gated Ca2+ and Na+ channels. Chronic treatment with this peptide causes an elevation in Na+ macroscopic current in bovine pituitary somatotropes in culture, which results in an increase in the release of GH.
But IGF-1 injections may soon be a thing of the past. Future use of IGF-1 will no doubt involve gene therapy, which directly targets genes that produce IGF-1 in muscle, usually by attaching specific gene activators to an inactive virus or vector that then enters into muscle cells. Studies in mice show that a procedure like this can cause  a 15% increase in muscle mass, along with a 14% increase in strength. Gene therapy in old mice has been shown to cause to a 27% increase in strength, along with regeneration of aging muscle. In one mouse study, the IGF-1 gene was placed in the animals’ glutes and calves, which resulted in up to a 115% increase in muscle-cross-sectional area.

Five of the submissions did not support the proposal while the sixth submission did. The former contend that potential risks of inadvertent use of caffeine in those at risk of an adverse event will be increased if selection of an analgesic is made without the assistance or intervention of a healthcare professional. There was also concern that the proposed exemption may result in an increase in liver damage due to excessive consumption of such a product. This was likely to result from people abusing these products as a source of stimulants.

Prolactin, or estrogen gynecomastia issues: Those that are sensitive to prolactin based gynecomastia are open to problems with GHRP-6. Luckily, this is a rare occurrence, and it can be easily combated with dostinex. However, those who stack this compound with anabolic androgenic steroids may have a greater chance of getting gynecomastia. Thats why an AI (aromatase inhibitor) should be used during this kind of cycles.
Used for muscle building, weight loss and anti-aging purposes, this is a very powerful peptide for promoting growth hormone release. GHRP-6 also helps in fighting inflammation and boosting recovery. Some professional bodybuilders are believed to use it together with steroids for greater potency. The peptide not only stimulates the pituitary to produce growth hormone, but also suppresses somatostatin which could impede release.
GH secretagogues differ from exogenous rHGH in their effects primarily because endogenous GH contains all five isoforms of growth hormone, whereas exogenous GH contains only the 20 kilodalton isoform. Different isoforms affect tissues in discreet ways that the 20 kDa isoform cannot. Administration of GH secretagogues causes a pulse-release of GH from the pituitary which is cleared from the body within a few hours. This does not significantly raise plasma insulin-like growth factor 1 (IGF-1) levels.[citation needed]