United States Pharmacopeia (USP) is a scientific nonprofit organization that sets quality standards for medicines, dietary supplements, and food ingredients globally. They generate revenue through the sale of publications, reference standards, and verification services that ensure the quality and safety of these products. Founded in 1820, USP has a long history of protecting public health by establishing rigorous standards that are recognized and enforced by regulatory agencies worldwide. Their work is crucial for maintaining the integrity of the pharmaceutical supply chain and ensuring consumer trust.