Silybum marianum, commonly known as milk thistle, is a flowering plant belonging to the Asteraceae family. It is native to Mediterranean regions but has spread to various parts of the world. The plant is characterized by its distinctive purple flowers and spiky leaves, which are often marked with white veins. The seeds of milk thistle contain a compound called silymarin, which is believed to have antioxidant and anti-inflammatory properties. Traditionally, it has been used to support liver health and treat conditions like liver cirrhosis and hepatitis. However, scientific research on its effectiveness is ongoing.