The GLP-1 Active Control Pack consists of three levels of controls, each containing known concentrations of amidated GLP-1 (7-36) peptide that are detected by the V-PLEX GLP-1 Active and V-PLEX GLP-1 Active Plus Kits (catalog # K1503OD, K1503OG). The GLP-1 Active Controls 1, 2, and 3 are prepared by spiking the synthetic calibrator into a non- matrix based diluent. The controls are supplied as lyophilized powders.