The most comprehensive nutrient formula in the world is Life Extension Mix. Some Life Extension members, however, prefer to take their nutrients separately, and they need only a basic multinutrient supplement to fill in the missing gaps. For many years, these members had to rely on commercial one-a-day supplements that provide low potencies. In response to requests for a scientifically based one-per-day supplement, Life Extension compounded a formula that provides the same essential vitamins and nutrients as Two-Per-Day, but in a single tablet. When compared to conventional one-a-day products, Life Extension One-Per-Day contains up to 50 times more potency. One-Per-Day provides the three most effective forms of selenium which are sodium selenite, L-selenomethionine, and methyl-L-selenocysteine. Additionally, the vitamin B12 in One-Per-Day contains the methylcobalamin form. Methylcobalamin is the active coenzyme form of vitamin B12. One-Per-Day Tablets also provide Crominex 3+, a highly stable and biologically active form of chromium blended with Capros Amla and PrimaVie Shilajit.1 When used as part of a healthy diet, chromium plays a vital role in maintaining healthy blood sugar levels in those within normal range. One-per-day Tablets additionally contain alpha-lipoic acid, the universal antioxidant that also helps boost glutathione levels already in normal range. Life Extension's One-Per-Day formula now contains the form of vitamin D known as cholecalciferol (vitamin D3). It also has been upgraded to provide bioactive forms of vitamin B2 and vitamin B6, zinc citrate and natural mixed tocopherols.