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Retatrutide is what happens when you take semaglutide and add two more receptor systems. While semaglutide hits GLP-1 alone, retatrutide simultaneously activates GLP-1, GIP, and glucagon receptors — adding thermogenic and lipolytic pathways that single agonists simply can’t reach. If semaglutide is the benchmark, retatrutide is what’s being studied next. True North Peptides supplies retatrutide at ≥99% purity in 5mg lyophilised vials. For research use only.
What Is Retatrutide?
Retatrutide (LY3437943) is a triple receptor agonist — one molecule that hits GLP-1R, GIPR, and GcgR simultaneously. GLP-1R gives you the proven satiety and glucose effects you get from semaglutide. GIPR adds enhanced insulin response and adipose tissue lipolysis. GcgR activates hepatic glucose production and thermogenesis — a fat-burning mechanism that GLP-1 agonists alone don’t engage. That’s three distinct metabolic levers working at the same time.
What The Research Shows
Early clinical research on retatrutide produced some of the most significant weight reduction data ever documented for any investigational metabolic compound — exceeding what was seen with GLP-1 single agonists. The combination of appetite suppression (GLP-1), enhanced insulin action (GIP), and thermogenesis (glucagon) creates a synergistic metabolic effect that researchers are actively trying to understand at the cellular and molecular level.
Retatrutide vs Semaglutide
Semaglutide is a proven GLP-1 agonist — excellent for glucose regulation and appetite suppression research. Retatrutide adds GIP and glucagon receptor agonism, engaging thermogenic and lipolytic pathways that semaglutide can’t reach. For researchers studying whole-body energy metabolism or looking at the next frontier in metabolic science, retatrutide is the more advanced tool.
Storage & Handling
Store lyophilised retatrutide at −20°C. Reconstitute with bacteriostatic water, gentle swirling. Refrigerate at 2–8°C post-reconstitution, use within 4–6 weeks. Avoid freeze-thaw cycles.
Product Specifications
Compound: Retatrutide (LY3437943) — GLP-1R/GIPR/GcgR Triple Agonist | Form: Lyophilised powder | Vial Size: 5mg | Purity: ≥99% | Storage: −20°C dry; 2–8°C post-reconstitution.
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