Xi'an Herb Refine Biologic Products Co., Ltd. is the sales and R&D center of Chongqing Joywin Natural Products Co., Ltd. It is the wholly-owned subsidiary of Chongqing Joywin Natural Products Co., Ltd., established in 2008 with registered capital of six million Yuan. It's located in Xi'an, China where the Silk Road started. We provide formula service and customized production. We serve the customer with our sincerity and enthusiasm.