Green Tea Extract is one of the highest antioxidant, which has been widely used in food and health care industries.Tea Extract prevents cardio-vascular disease, lowers the risk of cancer, and decreases blood sugar and blood pressure, as well as viruses. Shanglin Tea Extracts Series: 1)For Dietary supplement EGCG:15%-60% Catechins:30%-80% Polyphenols:40%-98% caf:0.5%-10%