Free radicals are highly reactive molecules that seek stability by gaining other electrons. In their attempt to do this they often attack nearby molecules resulting in cellular or systematic damage. Antioxidants act by preventing or slowing the damage caused by these free radicals. A reduction in total antioxidant status has been identified in several disease states, such as cancer and heart disease. Our Acusera Antioxidant Internal Quality Controls are lyophilised for enhanced stability and cover a range of antioxidants ideal for both clinical diagnostic and research use.