Metabolic Research

Receptor agonist peptides and metabolic substrates used in binding and signalling studies. The peptides in this group act at the incretin receptors, and the research interest is in receptor selectivity and downstream signalling rather than in any physiological outcome.
Tirzepatide has activity at both GIP and GLP-1 receptors. Retatrutide adds glucagon receptor activity, which is why the two are frequently run side by side in comparison work. Both are supplied lyophilised in larger vial sizes than the rest of the catalogue, because the quantities used in receptor work tend to be higher.
L-Carnitine sits in this group as a metabolic substrate rather than a receptor ligand, and is the one item here supplied as a stable powder at ambient temperature rather than a frozen peptide.
These compounds are supplied strictly as laboratory reagents. They are not medicines, they are not licensed for human or veterinary use, and they are not supplied for any purpose other than in vitro research.
What you get with every order
Certificate of analysis per batch with the analytical method stated, batch reference recorded against your order, and full specification published on the listing before you buy rather than available on request afterwards.
Some compounds in this group are approved or investigational medicines in the United Kingdom. Where that applies, the product page says so directly.