For over 200 years, USP has worked to build trust where it matters most: in the world's medicines, dietary supplements and foods. Through our rigorous science and the public quality standards we set, USP helps protect patient safety and improve the health of people around the world.USP is an independent, scientific nonprofit organization focused on building trust in the supply of safe, quality medicines. We are working to strengthen the global supply chain so that the medicines people rely on for health are available when needed and work as expected.