Nature's Way Nature's Way Pearls Urinary Tract Health Probiotic + CranRx is a daily probiotic supplement with researched cranberry fruit concentrate to support women’s urinary health.* With 7 billion CFUs (colony forming units) of a proprietary Lactobacilli blend per 2-capsule serving and cranberry concentrate derived from 25,000 mg of fresh cranberries standardized to PACs (proanthocyanins), the key bioactives in cranberries.