Cell Guard Plus by BioTec Foods is a unique type of supplement focused on cellular antioxidant and detoxification. The Cell Guard formula includes enzymes and phyto-nutrient-rich botanical extracts from spirulina, soybeans and sweet corn, which are thought to induce production of important antioxidant enzymes like glutathione peroxidase. A small amount of glutathione peroxidase enzyme is also included in the Cell Guard Plus formula, along with the critical antioxidant vitamin E and cellular energy factor vitamin B-12.