Quercetina in stock Our History Changsha Heking Bio-tech Co., ltd was established in 2016, located in Changsha, Hunan province. Heking is a professional supplier of herbal extracts & plant extracts, specialized in the research, development and production of active ingredients of plant extracts and natural products for functional foods, dietary supplements, health products and pharmaceutical field. Besides, We have founded our unique warehouses in Los Angeles, USA in order to serve more customers all over the world. Our Team With high-level technical personnel and comprehensive team, we provide customers with professional, comprehensive, fast and high-quality services to solve the technical problems in different industry. An internal quality control system higher than the industry standard is strictly formulated for each product to ensure the high quality and stability of the product. Our EquipmentQuercetina in stock website:http://www.csheking.net/