we have a research lab equipped with complete of analytical instruments, and a modern factory which integrates extract, chromatography, purification, crystallization and drying of effective constituents of plants. we work out perfect quality management system and standard operation procedure from selection of raw materials, incoming detection, quality control over production process, inspection before leaving factory and warehousing to delivery to users, strictly perform production and management according to haccp and iso9001 quality management system. the quality inspection report will be delivered to customers along with the goods, making sure timely and stable supply of products. by hplc, uv, gc and other methods with different instruments, we can test the ingredients of different products, and finally make customers satisfied.