Milk thistle is another ancient Greek herb that has been used for its healthy purposes for centuries. Nature's Bounty bring the concentrated form of this anti-oxidizing herb in its Milk Thistle Herbal Supplement. Milk thistle supports the functioning and health of liver. With its natural antioxidant properties it helps the liver function well to remove free radicals and harmful toxins from the body. Additionally, it may also regularize cholesterol levels, promote heart health and slow down aging process.