The Chinese have been using Green Tea for medicinal purposes for over 4000 years. Today, the western world is finally coming to realize the amazing benefits of drinking green tea. Green Tea contains polyphenols, which are naturally occurring compounds that act as antioxidants for disease prevention and treatment of many illnesses. The level of polyphenols is higher in green tea because green tea is unoxidized, Unlike Oolong tea which is partially oxidized and black tea is fully oxidized. These unaltered polyphenols are green tea's primary active ingredients.