CJC-1295 without DAC (also known as Mod GRF 1-29) is a shorter-acting analog of growth hormone–releasing hormone (GHRH) studied for its role in growth hormone signaling pathways. It is sometimes researched in combination with Ipamorelin, a synthetic peptide studied for its activity at ghrelin (GHS-R1a) receptors. Together, they have been explored in research settings for their complementary interactions within endocrine regulatory mechanisms related to growth hormone release.