St Mary's thistle is the most extensively-studied liver remedy in western herbal medicine. Not only has the active constituent (silymarin) been well-studied, but the product itself has been involved in countless, successful clinical trials. Its primary role is to protect the liver against potentially harmful chemicals, especially alcohol. Studies have shown that it supports the regeneration and detoxification of the liver and maintains normal liver function. Dosage: Adults and children over 12 years can take 10 mL twice daily before or after meals. Each 10 mL dose contains equivalent to dry seed 5 g. ,