Lansen Pharmaceutical Holdings Limited, an investment holding company, develops, produces, and sells specialty pharmaceuticals for use in the field of rheumatology and dermatology in the People's Republic of China and Hong Kong. The company operates through Pharmaceuticals, Cosmetics Products, and Healthcare Products segments. It offers Chinese medicine; generic drugs; cosmetic products; and healthcare products. The company was founded in 2001 and is headquartered in Ningbo, the People's Republic of China. Lansen Pharmaceutical Holdings Limited is a subsidiary of Cathay International Pharma Manufacture and Distribution (China) Limited.