GlaxoSmithKline plc. (GSK) is a pioneer in the pharmaceutical market. The company operates its business through three major operating segments—Pharmaceutical Medicines, Vaccines, and Consumer Healthcare. The company develops and markets wellness, oral health, nutrition, and skin health products through its Consumer Healthcare business segment. The company’s oral health business includes popular brands such as Sensodyne, Polident, Paradontax, Biotene, and Aquafresh.