We insist over the principle of enhancement of 'High high quality, Efficiency, Sincerity and Down-to-earth working approach' to offer you with superb assistance of processing for Oolong Tea Extract, Hawthorn Fruit Extract , Levodopa Cas 59-92-7 , Bitter Melon Extract ,Arctiin 90% . Welcome your enquiry, greatest service is going to be provided with full heart. The product will supply to all over the world, such as Europe, America, Australia,belarus , Botswana ,Czech , Bolivia .We set a strict quality control system. We have return and exchange policy, and you can exchange within 7 days after receive the wigs if it is in new station and we service repairing free for our products. Please feel free to contact us for further information if you have any questions. We are glad to work for every client.