EPO is a research peptide and glycoprotein hormone best known for its role in signaling red blood cell production. It has gained significant attention in scientific literature for oxygen transport, endurance-related physiology, tissue response to low-oxygen conditions, and broader cell-signaling research.Researchers are interested in EPO because it is commonly discussed in studies involving erythropoiesis, hypoxia signaling, recovery biology, and protective cellular pathways. For buyers browsing research peptides, EPO stands out as a high-interest compound with deep relevance to hematology and performance physiology research.