Since 1972 Promotes Healthy Liver Function Silybum Marianum Made From 2,000 mg Milk Thistle Seeds Per Serving Discover Nature's Answer Gluten-Free Non GMO Project Verified Herbal Supplement Absolutely No Preservatives K-Parve Bio-Chelated Cold Extraction ProcessOur extracts are produced using our cold Bio-Chelated proprietary extraction process, yielding a Holistically Balanced Advanced Botanical Fingerprint extract in the same synergistic ratios as in the plant.