Retatrutide (LY3437943) is a synthetic peptide agonist with activity at incretin and glucagon receptors, supplied for in vitro and receptor signalling research. The molecule is based on a GIP scaffold with modifications including 2-aminoisobutyric acid (Aib) and a C18 fatty acid conjugate, and has been studied in published literature for multi-receptor signalling. Available in 5 mg and 20 mg lyophilised vials. Supplied with certificate of analysis and batch documentation. For research use only — not for human or animal consumption.

Every batch is verified at the manufacturer and re-tested when received in the UK. We send batches to a third-party lab where results cannot be manipulated — we do not rely on supplier testing or CoAs alone, so you get what you pay for. Each batch is independently analysed and supplied with a Certificate of Analysis (CoA) detailing purity, identity, and analytical method used. Batch-coded stock ensures full traceability from production to dispatch. Stock is held in laboratory-grade temperature-controlled storage and prepared using controlled thawing before dispatch. See our About page for full details. Additional documentation is available upon request for institutional procurement.

Retatrutide (LY3437943) is a synthetic peptide agonist with activity at incretin and glucagon receptors, supplied for in vitro and receptor signalling research. The molecule is based on a GIP scaffold with modifications including 2-aminoisobutyric acid (Aib) and a C18 fatty acid conjugate, and has been studied in published literature for multi-receptor signalling. Available in 5 mg and 20 mg lyophilised vials. Supplied with certificate of analysis and batch documentation. For research use only — not for human or animal consumption.

Every batch is verified at the manufacturer and re-tested when received in the UK. We send batches to a third-party lab where results cannot be manipulated — we do not rely on supplier testing or CoAs alone, so you get what you pay for. Each batch is independently analysed and supplied with a Certificate of Analysis (CoA) detailing purity, identity, and analytical method used. Batch-coded stock ensures full traceability from production to dispatch. Stock is held in laboratory-grade temperature-controlled storage and prepared using controlled thawing before dispatch. See our About page for full details. Additional documentation is available upon request for institutional procurement.