Used in research and clinical settings to measure levels of interleukin-12/23 p40 in biological samples such as serum, plasma, or cell culture supernatants. This assay helps in studying immune responses, particularly in inflammatory and autoimmune diseases like psoriasis, multiple sclerosis, and inflammatory bowel disease. It enables researchers to assess the activation of the Th1 and Th17 pathways, monitor disease progression, and evaluate the effectiveness of immunomodulatory therapies. The kit is valued for its sensitivity, specificity, and quantitative results, making it a key tool in immunology and drug development research.