Bilirubin ELISA kits are assays designed to detect the metabolic product bilirubin. The molecule is made through the breakdown of red blood cells and is excreted through bile and urine. It is responsible for the yellow coloration of bruises and it is hypothesized that the main physiological role of bilirubin is as an antioxidant. High levels of bilirubin cause jaundice and its hardening in the gallbladder can lead to gall stones. Patients with the genetic liver condition Gilbert’s syndrome are not able to process bilirubin correctly, resulting in its build-up in the blood. Visit the supplier page for more information about detection range and reactivity.