Research-grade GLP receptor agonist peptides for laboratories studying incretin biology, including single, dual, and triple receptor agonist compounds in the semaglutide, tirzepatide, and retatrutide classes. These research peptides are used in preclinical studies of glucose regulation, energy balance, and metabolic signaling. Every batch is manufactured in the U.S., third-party tested to 99%+ purity, and supplied with a Certificate of Analysis. For laboratory research use only.