Natures Way - Milk Thistle - 60 Veggie Capsules - NPN: 80022608 -- Nature's Way standardized milk thistle is a scientifically and technically advanced herbal extract standardized to 80% silymarin. Nature's Way Milk Thistle extract supports normal liver function. The active bioflavonoid complex, silymarin and it's sub-component silibinin, are powerful antioxidants in the liver and exert a protective effect against substances that may be potentially harmful to the liver