Research suggests Milk Thistle helps promote a healthy liver to support overall wellness.* Our Milk Thistle seed is extracted to preserve optimal potency: The low-temperature, low-pressure process concentrates the herb's important phytochemical Silymarin, which is believed to help maintain healthy liver cells and cholesterol metabolism in individuals with already normal cholesterol levels.* With 1,000 mg of Milk Thistle per serving, this formula delivers 450 mg total Silymarins.