Milk Thistle (Silybum marianum) is an herb traditionally used for maintaining healthy liver function.* This is a great formula to help you stay feeling well for the long-term.* Our Certified Organic Milk Thistle Seed is extracted under low temperature and low pressure to preserve the important phytochemical Silymarin. Silymarin is believed to have antioxidant effects to help maintain healthy liver cells.* A great formula to help you stay feeling well.*