Milk Thistle (Silybum marianum) has been honored for centuries and recognized as an important herb to support the liver in its role as a detoxification organ. Milk thistle is a flowering herb related to the daisy family. It is native to Southern European countries, although it is now found in temperate regions throughout the world. Nature’s Answer Milk Thistle is the natural way to promote healthy liver function. It also promotes liver detoxification, as well as waste elimination.