Flavoring substance is to changes or modifies the original flavor of the food. Natural flavors and artificial flavor are different in sources, but can be manufactured into exact same chemical constituents. The pure flavoring substances are blended into food flavors,and then be added into the production of food, cosmetics, etc. The hot selling products like 2-Acetyl Pyrazine, Vanillin, Ethyl Vanillin, Furaneol.