Tirzepatide is a synthetic peptide of new generation, solely produced for scientific laboratory research. It appears as homogeneous fine white lyophilized powder. Comprehensive HPLC and MS tests verify that the purity is ≥99% and the molecular structure is correctly identified. Standard COA certificates and HPLC chromatograms are available for each batch to guarantee steady and reliable quality. The peptide dissolves well in sterile water and bacteriostatic water. It is suggested to prepare fresh peptide solution right before experiments to achieve the best experimental results.