At normal concentrations, selenium has a protective effect against several disease states, however, this protection is lost at lower concentrations and selenium can be toxic at high concentrations. It is therefore important to monitor selenium levels to ensure they are kept within normal range. Ransel (Glutathione Peroxidase) measures glutathione peroxidase which has a direct correlation with selenium levels.
The Randox Ransel reagents offer superior performance for reliable results.