Nature's Plus Sustained Release Ultra Cranberry is a high-quality cranberry supplement in a sustained-release form for optimum absorption. Cranberry has a long history of traditional use in support of healthy urinary tract function. Just one tablet supplies a potent 1,000 mg of pure cranberry juice solids plus 100 mg vitamin C for added antioxidant benefits. It has never been easier to receive the numerous benefits of this healthful berry.