CJC-1295 is a synthetic analog of growth hormone–releasing hormone (GHRH) commonly studied in endocrine and metabolic research. It is available in two primary forms CJC-1295 with Drug Affinity Complex (DAC) and CJC-1295 without DAC (often referred to as Modified GRF 1-29) each exhibiting distinct pharmacokinetic and functional characteristics that make them valuable for different experimental models.