Buy Tirzepatide 30mg Online

Tirzepatide (CAS 2023788-19-2, molecular weight 4813.45 Da) is a 39-amino-acid synthetic peptide carrying a C20 fatty diacid chain, and it is the first compound in the incretin class to engage two receptors at once. Native GLP-1 and GIP are gut hormones released after a meal; both raise insulin secretion, but only in the presence of glucose, which is why incretin signalling raises insulin without driving it in a fasted state. Tirzepatide binds the GLP-1 receptor with roughly the affinity of native GLP-1 and the GIP receptor considerably more strongly, making it functionally GIP-biased rather than balanced. GLP-1 receptor occupancy slows gastric emptying and acts on hypothalamic appetite circuits; GIP receptor occupancy contributes additional insulinotropic effect and appears to act on adipose tissue insulin sensitivity. The fatty diacid chain binds serum albumin, which is what extends the half-life from minutes to roughly five days and allows once-weekly dosing in the clinical literature. Across the SURPASS 1 through 5 trials, 5 to 15mg weekly produced HbA1c reductions of 1.24 to 2.58 percent and weight reductions of 5.4 to 11.7kg.