Ghrelin is often called the “hunger hormone”, but that description only covers one part of its biology. In growth hormone

Secretin is a 27-amino-acid peptide hormone best known for helping your digestive system handle stomach acid. It is also historically

Apelin-13 is a short, naturally occurring peptide attracting interest across cardiovascular, metabolic, fluid-balance and neuroscience research. It contains 13 amino

When you hear “Klamin,” it is easy to assume you are looking at another peptide or synthetic nootropic. You are

Neuropeptide Y (NPY) is a 36-amino-acid signalling peptide found throughout the mammalian nervous system. It is one of the most

You can think of Neuropeptide S (NPS) as a biological “alertness messenger” being studied for its unusual ability to increase

Your appetite, stress response, pain sensitivity and hormone signals are not controlled by separate systems working in isolation. They behave

Neuropeptide FF (NPFF) is a small amidated octapeptide attracting attention in pain and neuropharmacology research. It belongs to the RF-amide

Neurotensin is a 13-amino-acid peptide with an unusual dual identity. In the brain, it acts as a neuropeptide. A chemical