Nanjing Zelang Medical Tech. Co., Ltd, founded by Dr. Liu Dongfeng in 2004 is a full service manufacturing company with 12 years of continued development. Staffed with more than 100 employees in Research and Development, Production and Quality Assurance departments. Our newest and extended sub-branch in North America, Zelang Group USA in Ontario CA, was established in 2015.

Zelang Medical is the first manufacturer in China PR utilizing the new patent "MELLES" to produce plant extracts. Dr. Liu invented the new extraction technology, which compared to traditional extraction, "MELLES" adopts Integrated Membrane System, mainly consisting of MFM (micro-filtration membrane), UM (ultrafiltration membrane) and ROM (reverse osmosis membrane), pipeline system, and low pressure extraction system.

All products are tested before delivery and are conducted by our highly trained and qualified testing engineers at Zelang Medical Quality Assurance Department. Our lab is equipped with state-of-the-art HPLC testing systems, UV testing systems, loss on drying equipment, heavy metals residue equipment, microorganism equipment and more.