Tesamorelin, CJC-1295 (without DAC) and Ipamorelin are a research peptide mixture formulated to investigate modulation of the growth hormone axis through combined GHRH- and ghrelin-receptor pathways. Tesamorelin and CJC-1295 (Mod GRF 1–29) activate GHRH receptor signaling via cAMP/PKA cascades, while Ipamorelin targets the GHS-R1a receptor and promotes calcium mobilization. This mixture is used in endocrine and receptor biology studies examining synergistic GH pulsatility and hypothalamic-pituitary coordination.