---
title: "Peptide hormone: research glossary | Sable Peptides"
description: "A peptide hormone is a signalling molecule composed of amino acids that is secreted by cells and acts on specific receptors. Examples studied in research i"
canonical: https://www.sablepeptides.co.uk/glossary/peptide-hormone
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Glossary

# Peptide hormone

A peptide hormone is a signalling molecule composed of amino acids that is secreted by cells and acts on specific receptors. Examples studied in research include oxytocin, vasopressin and fragments of growth hormone-releasing hormone. Synthetic analogues are widely used as reference standards and tool compounds in receptor-binding and cell-based assays.

Source: [en.wikipedia.org](https://en.wikipedia.org/wiki/Peptide_hormone)

## Related terms

-   [Peptide](/glossary/peptide)
-   [Receptor](/glossary/receptor)

## Reference data

-   [Oxytocin](/ref/oxytocin)

## Related products

-   [https://www.sablepeptides.co.uk/product/oxytocin-5mg](https://www.sablepeptides.co.uk/product/oxytocin-5mg)

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