It is the world 's second - largest conglomerate . U.S.-based Stiefel is world 's largest independent dermatology company . GSK Group acquire total share capital of Stiefel for $ 2.9 billion . Global business units operate under Stiefel brand within GSK Group .
GSK is the world 's second-largest drugmaker . U.S.-based Stiefel is world 's largest independent dermatology company . GSK will acquire total share capital of Stiefel for $ 2.9 billion . Global business will operate under Stiefel identity within GSK Group .