Each capsule contains 500mg of pure extract of Sylibum marianum, equivalent to 15.4 gram of dry Silybum fruit, standartized to contain 172mg of the active ingredient silymarin. Silymarin is a well known and well researched natural compound, known to help liver detoxification and recovery from liver disease. Recommended dose: ONE capsule THREE times a day, or as advised by a health care practitioner.