For years, researchers have sought the ideal insulin assay that would combine absolute specificity with sensitivity, accuracy, low sample consumption, and ease-of-use. The search has come to an end! This serum insulin assay offers superior specificity and sensitivity for a reliable quantification of insulin in serum and plasma samples. Built on a truly homogeneous protocol, the assay does not require any washing or complex extraction steps, leading to significant time savings over ELISA methods.