Research Peptides

Our GLP-1 receptor agonist peptides include Semaglutide, Tirzepatide, and Retatrutide — among the most studied compounds in metabolic research today. Glucagon-like peptide-1 (GLP-1) receptor agonists are a class of incretin mimetics that bind to and activate the GLP-1 receptor, a key target in the study of glucose homeostasis, insulin secretion, and energy balance pathways. These peptides have become central to ongoing research into metabolic regulation and body composition.

Each GLP-1 peptide in our catalogue is supplied as a lyophilised powder with ≥98% purity, verified by independent HPLC-MS analysis conducted by Janoshik Analytical — one of the most respected third-party testing laboratories in the peptide industry. Full Certificates of Analysis are available for every batch, providing detailed purity data, mass spectrometry results, and amino acid sequence confirmation.

Tirzepatide is a dual GIP/GLP-1 receptor agonist investigated for its synergistic effects on incretin signalling. Retatrutide represents the next generation as a triple agonist targeting GLP-1, GIP, and glucagon receptors simultaneously. Semaglutide remains one of the most widely referenced GLP-1 analogues in published research literature. All GLP-1 peptides are sold strictly for in-vitro research and laboratory use only — not for human consumption. UK next-day delivery is available on all orders.