Standardized Milk Thistle Extract

21st Century's Milk Thistle Extract (Silybum marianum) is grown wild in Europe and America and has been used as a powerful health tonic for more than 2,000 years. Features silymarin, the active complex found in milk thistle extract. 21st Century's standardized herbal extracts are thoroughly tested to assure specific levels of the important active ingredients are present for maximum benefit.