Granulocyte-Colony Stimulating Factor (G-CSF) is a human-derived protein that promotes the production of granulocytes, a type of white blood cell essential for immune response. Widely used in immunology, oncology, and hematology research, G-CSF supports studies focused on enhancing immune function, particularly in bone marrow stimulation and recovery therapies. Its role in boosting white blood cell production makes it a crucial tool for developing treatments against infections and immune deficiencies.