Ultra One Time Release by Nature"s Plus 180 Sustained Release Tablet The ingredients are the same as our regular Ultra-One formula. However this formula is in a special base which provides for the gradual release of ingredients over a prolonged period of time. Ultra-One is the ultimate mega-potency multi-vitamin and mineral. Ultra-One offers 100 mg of all the B vitamins plus mega-potencies of all other vitamins. In addition Ultra-One has the highest potencies and the broadest number of amino acid chelated minerals of any multi-vitamin available today. Ultra-One is truly the ultimate one-a-day.