Used to measure interleukin-12 p70 (IL-12p70) levels in human biological samples such as serum, plasma, or cell culture supernatants. IL-12p70 is a key cytokine involved in immune regulation, particularly in promoting Th1 immune responses and activating natural killer (NK) cells and T cells. This ELISA kit is widely applied in research on autoimmune diseases, infectious diseases, cancer immunotherapy, and inflammatory conditions where IL-12p70 serves as a biomarker of immune activation. It enables researchers to quantify IL-12p70 with high sensitivity and specificity, supporting studies in immunology, vaccine development, and therapeutic monitoring.