Swanson Ultra Cran-Max is the first clinically proven super-concentrated complete cranberry supplement on the market. Just one 500 mg capsule gives you the nutritive activity of 10 oz of cranberry juice! Plus Cran-Max features a unique Bio-Shield delivery system that protects the bioactive substances through the stomach for slow release within the lower GI tract where you need it most. Limited scientific evidence shows that by consuming 500 mg each day of a cranberry dietary supplement healthy women who have had a urinary tract infection (UTI) may reduce their risk of recurrent UTIs.