100% Sprout Concentrate. Superoxidase Dismutase Precursor with Co-Factors. Cell Guard is made entirely of specially developed, hydroponically grown IsoSproutPlex. Each caplet contains concentrated plant enzymes and isoflavonoids. Their specialized moisture removal process preserves active nutritional factors. This unique complex has been shown to enhance the body's production of erythrocyte super oxide dismutase (eSOD), and its related catalase (CAT), methionine reductase (MET) and a selenioorganic compound that mimics glutathione peroxidase endogenously (GP).