---
title: "Tirzepatide vs Retatrutide?"
description: "Tirzepatide and Retatrutide are different research compounds. Tirzepatide is a dual GIP and GLP-1 receptor agonist peptide studied in metabolic and…"
canonical: https://www.sablepeptides.co.uk/questions/tirzepatide/tirzepatide-vs-retatrutide
dateModified: 2026-10-11
publisher: Sable Peptides Limited (UK company 17488610)
note: Research use only. Not for human or veterinary use.
---

Sable · Question

# Tirzepatide vs Retatrutide?

Tirzepatide and Retatrutide are different research compounds. Tirzepatide is a dual GIP and GLP-1 receptor agonist peptide studied in metabolic and incretin research; Retatrutide is an investigational single-molecule agonist of the GIP. They are not interchangeable and there is no published head-to-head comparison. Sable sells both for research use only, each with a lot-specific CoA.

## Tirzepatide

a dual GIP and GLP-1 receptor agonist peptide studied in metabolic and incretin research.

## Retatrutide

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 (£28.98), 10 mg (£44.98), 15 mg (£38.98), 20 mg (£40.39), 30 mg (£61.98), 40 mg (£86.98), 60 mg (£124.98). Supplied as a lyophilised (freeze-dried) powder in a sealed vial.

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 4 UK-facing retailers, the median list price for 10 mg was £50.00 (range £44.98 to £55.00); Sable listed it at £44.98. 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

Tirzepatide 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 tirzepatide](/questions/tirzepatide)

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)[pubchem.ncbi.nlm.nih.gov](https://pubchem.ncbi.nlm.nih.gov/compound/166567236)

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