Lansen Pharmaceutical Holdings Ltd. is an investment holding company engaged in the research, development, production, and sales of traditional Chinese and chemical medicines. It specializes in pharmaceuticals for rheumatology and dermatology, with key products including total glucosides of paeony capsules. The company also has segments for cosmetics and healthcare products. It was founded in 2001 and is headquartered in Ningbo, Zhejiang, China.