Hagen adhere to the "Quality-oriented" concept,  the introduction of  ISO9000, GMP, GAP, FDA and the other kinds of quality control and management system, privde the perfect quality control and quality inspection for each of our products, to ensure that each product is safety and quality.

Hagen Quality control testing center equipted a full set of advanced instruments for researching and testing, including HPLC, HPTLC, UV, AAS, GS-MS. Quality control testing center set up a strict quality monitoring system for plant raw materials from planting, collecting and purchasing, to the product development, production, drying, packaging, transportation and the other each links links in the production chain. Hagen rely on its perfect quality system, strong research and development strength, advanced testing method, feedback society with the best service and high quality products.