https://www.usp.org/products/dietary-supplements-compendium

The Dietary Supplements Compendium (DSC) offers information covering aspects of quality in dietary supplements manufacturing. This resource supports various stages of the production process, including research and development, quality control, quality assurance, and regulatory/compendial affairs. DSC provides critical information on ingredient safety and safe limits, aiding in the development of new dietary supplements. Acess by paid subscription