Cataplex® E, 360 TabletsCataplex E is a vitamin E supplement that supports cellular processes and healthy thyroid function.* Supports cell signaling and regulation of gene expression* Excellent source of antioxidant vitamin E and selenium What is selenium? Selenium is an element of a group of proteins known as selenoproteins. These play critical roles in thyroid hormone metabolism and DNA synthesis in cells, among other actions. 1 What is vitamin E? Vitamin E is a fat