Tesamorelin is a synthetic peptide analog of growth hormone-releasing hormone (GHRH), consisting of 44 amino acids with enhanced stability and potency. It is studied for its ability to stimulate endogenous growth hormone (GH) release by binding to GHRH receptors in the anterior pituitary. Research applications include investigations into GH pulsatility, IGF-1 regulation, and metabolic pathways involving lipid turnover and insulin sensitivity.