Standardized extract based on cranberry concentrate. In traditional North American herbalism, cranberry has been used to prevent kidney stones and "bladder gravel" as well as to remove toxins from the blood. Potential applications: urinary tract infections, cellular protection, cataracts: anthocyanosides can protect both the lens and retina from oxidative damage, chronic venous insufficiency, prostatitis, kidney stones (calcium oxalate). Known contraindications: Cranberry concentrate has no known side effects and has no known contraindications for use during pregnancy and breastfeeding. How to use Take one to three capsules a day with food, or as recommended by your specialist.