Ultra Cranberry Time Release by Nature's Plus 60 Sustained Release Tablet Ultra Cranberry 1000 is the highest potency highest quality cranberry supplement ever formulated. Just one sustained release tablet supplies an unprecedented 1 000 mg of pure cranberry juice solids. It has never been easier to receive the numerous benefits of this healthful berry. As part of its commitment to quality Nature's Plus always uses the most current controlled techniques to prevent the damaging effects of moisture light and oxidation for all its products.