Amgen is a biopharmaceutical company that offers research and development services in addition to therapeutic product manufacturing. The company offers laboratory tests, drug development, clinical research and medicinal formulations for the treatment of cancers, rheumatoid arthritis and related diseases. It manufactures a variety of pharmaceutical products, such as skin treatment gels, liquids and tablets. Its brands include Enbrel, EPOGEN, Kepivance, Kineret, NEUPOGEN, Sensipar and Neulasta. The company also offers in-licensing, marketing, promotions and worldwide distribution services. Its areas of therapeutic development operation include oncology, hematology, nephrology, neuroscience, inflammation and metabolic disorders. It employs more than 8,000 individuals. Amgen has one of its offices located in South San Francisco, Calif.