GHRP-2 is a synthetic growth hormone secretagogue that has been found to bind to the ghrelin/growth hormone secretagogue receptor. Its effects have been studied in research trials, which have shown that it can improve muscle growth, regulate the immune system, and enhance sleep cycles.

Additionally, GHRP-2 has been found to be orally bio-active, and is used as a test peptide for assessing growth hormone deficiency and secondary adrenal failure. Studies have investigated GHRP-2 in clinical trials for short stature, and ongoing research is exploring its effects on appetite, muscle growth, the immune system, and sleep cycles.

GHRP-2 can stimulate muscle growth by increasing protein deposition and reducing protein degradation, which overcomes growth plateaus that may occur due to factors such as food deprivation, disease, and adverse environmental conditions.

Moreover, GHRP-2 can prevent muscle atrophy by inactivating proteins that control the muscle degradation pathway. GHRP-2 also activates growth hormone and insulin-like growth factor-1 to promote muscle protein deposition, and encourages the development of lean body mass even in challenging conditions.

Additionally, research has shown that GHRP-2 and related peptides can protect heart cells by reducing programmed cell death, and may have specific receptors that can be targeted for drug development. Furthermore, GHRP-2 can stimulate the thymus to produce more T-cells, which are critical for adaptive immunity and fighting off infections.

With age, the thymus function declines, which can lead to various age-related dysfunctions. GHRP-2 has been shown to rejuvenate the thymus, leading to improved immunity.