---
title: "What is Retatrutide peptide?"
description: "Retatrutide is an investigational single-molecule agonist of the GIP, GLP-1 and glucagon receptors, studied in metabolic research models; it has no UK…"
canonical: https://www.sablepeptides.co.uk/questions/retatrutide/what-is-retatrutide-peptide
dateModified: 2026-10-11
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Sable · Question

# What is Retatrutide peptide?

Retatrutide is an investigational single-molecule agonist of the GIP, GLP-1 and glucagon receptors, studied in metabolic research models; it has no UK marketing authorisation. It is sold by Sable Peptides strictly for in-vitro research use, from £23.99 for 5 mg, with a Certificate of Analysis for every lot, a printed lot number on each vial and next-day UK delivery. It is not a medicine.

## What it is

Retatrutide is an investigational single-molecule agonist of the GIP, GLP-1 and glucagon receptors, studied in metabolic research models; it has no UK marketing authorisation.

Sizes and prices at Sable (checked 2026-10-15): 5 mg (£23.99), 10 mg (£24.99), 15 mg (£37.99), 20 mg (£48.99), 30 mg (£66.99), 40 mg (£88.99), 50 mg (£108.99), 60 mg (£128.99). Supplied as a lyophilised (freeze-dried) powder in a sealed vial.

## How prices are checked

we compare our price daily against genuine, established UK suppliers only (not marketplaces or unverifiable listings) and guarantee the lowest UK price. If you find a lower like-for-like price from such a supplier, we match it. In our 10 October 2026 snapshot of 7 UK-facing retailers, the median list price for 10 mg was £49.00 (range £24.99 to £72.99); Sable listed it at £24.99. Method and seller types are explained on the pricing methodology page.

## Documentation

Every lot has its own Certificate of Analysis and every vial carries a printed lot number, so the paperwork matches the vial. You can request the CoA for the lot you will receive before you order. A useful CoA names the lot, the test method (usually HPLC for purity and mass spectrometry for identity), the result and the date.

## Ordering

we have operated since 2019, ship next-day across the UK, and take payment by Pay by Bank via Wallid. Research materials can't be returned, but anything faulty or damaged in transit is refunded or replaced.

## Research use only

Retatrutide is sold for in-vitro laboratory research. It is not a medicine, is not for human or animal use, and nothing here is advice on use.

[More questions about retatrutide](/questions/retatrutide)

Research use only. Not a medicine. Not for human or veterinary use.

Sources: [www.sablepeptides.co.uk](https://www.sablepeptides.co.uk/data/price-index/2026-10-10)[www.sablepeptides.co.uk](https://www.sablepeptides.co.uk/pricing/methodology)

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