United States Pharmacopeia (USP) has published resources to support product quality for glucagon-like peptide-1 (GLP-1) agonists. The new resources include a set of reference standards and analytical reference materials for exenatide, liraglutide, and semaglutide to be used by pharmaceutical manufacturers. Additionally, USP has also prepared information sheets for testing the purity of products and an infographic detailing the workflow of synthetic peptide drug substances and drug products.