Yang Meishu skin extract is the use of modern extraction technology from bayberry bark extract rich in flavonoids of natural active substances, and has good water-soluble and alcohol, both deep processing as anti-arrhythmia, myocardial ischemia, new antihypertensive drugs, but also rough for the new class of tea flavor drinks. In addition, Yang Meishu skin extract also has excellent corrosion and oxidation resistance, is the new natural preservatives and antioxidants, while Yang Meishu skin extract contains flavonoids and melted in the quality of the main two types of compounds with anti-plant virus and anti-animal virus.