Buy retatrutide (LY3437943) - the GLP-1 / GIP / glucagon triple agonist - as a >99% HPLC-tested research compound. Single-vial samples and 10-vial research packs where listed, a public batch Certificate of Analysis, and tracked United Kingdom delivery. For laboratory and research use only - not for human use. 21+.

Inside New-U Research Compounds

What is Retatrutide?

Retatrutide (LY3437943) is a single-molecule triple receptor agonist - it activates the GLP-1, GIP and glucagon receptors together, the mechanism that has made it the most closely watched entrant in the incretin class. Researchers buy retatrutide to study how simultaneous agonism across all three pathways differs from single- and dual-agonist reference compounds such as semaglutide. New-U supplies it as a lyophilised research compound as single-vial samples and 10-vial research packs where listed, reconstituted in the lab for in-vitro and pre-clinical work on incretin and glucagon-receptor signalling. Every order is a genuine research quantity shipped with its batch paperwork - not a repackaged or relabelled consumer product.

Retatrutide in research

In published Phase 2 clinical research, retatrutide has reported substantial body-composition endpoints among incretin-family research compounds - the reason demand for research-grade material has risen sharply through 2025–2026. Reported work spans metabolic, endocrine and receptor-signalling models: how triple agonism influences energy expenditure, how the glucagon arm behaves alongside GLP-1 and GIP activity, and how the molecule compares with semaglutide as reference agonists. New-U supplies retatrutide purely as a research chemical for in-vitro and laboratory investigation - these are descriptive observations from the literature, not usage guidance, and New-U provides no human dosing recommendations of any kind. Anyone sourcing retatrutide for a study should confirm identity and purity against the batch Certificate of Analysis before beginning work.

Why researchers choose New-U Retatrutide

Every retatrutide batch is independently HPLC tested by Janoshik Analytics or Freedom Diagnostics to >99% purity, with mass-spectrometry identity confirmation and a batch-linked Certificate of Analysis you can read before you order - not a certificate you have to request after paying. The current batch, its lab, accession number and exact purity figure are published openly on our retatrutide COA page, so you can verify the material independently the way any research purchase should be. New-U ships retatrutide direct from the manufacturer as single-vial samples and 10-vial research packs where listed - no reseller mark-up, no relabelled stock, no mystery vials. That transparency, plus tracked delivery and responsive support, is why researchers choose to buy retatrutide from New-U rather than an anonymous listing.

Priced in USD; your local currency is applied at checkout.

Retatrutide Price in United Kingdom

Available in 1 or 10 vials. Prices in USD; GBP equivalent shown for reference - final GBP total is set at checkout via live rate.

Pack USD GBP (approx) Per vial 5 mg × 10 vials $189 ≈ £143 ≈ $19/vial · £14/vial 5 mg × 1 vial $77 ≈ £58 ≈ $77/vial · £58/vial 10 mg × 10 vials $219 ≈ £166 ≈ $22/vial · £17/vial 10 mg × 1 vial $87 ≈ £66 ≈ $87/vial · £66/vial 15 mg × 10 vials $249 ≈ £188 ≈ $25/vial · £19/vial 15 mg × 1 vial $98 ≈ £74 ≈ $98/vial · £74/vial 20 mg × 10 vials $279 ≈ £211 ≈ $28/vial · £21/vial 20 mg × 1 vial $103 ≈ £78 ≈ $103/vial · £78/vial 30 mg × 10 vials $299 ≈ £226 ≈ $30/vial · £23/vial 30 mg × 1 vial $112 ≈ £85 ≈ $112/vial · £85/vial 40 mg × 10 vials $319 ≈ £241 ≈ $32/vial · £24/vial 40 mg × 1 vial $119 ≈ £90 ≈ $119/vial · £90/vial 50 mg × 10 vials $349 ≈ £264 ≈ $35/vial · £26/vial 50 mg × 1 vial $126 ≈ £95 ≈ $126/vial · £95/vial 60 mg × 10 vials $379 ≈ £286 ≈ $38/vial · £29/vial 60 mg × 1 vial $133 ≈ £101 ≈ $133/vial · £101/vial

GBP prices are approximate and for reference only. All products are supplied strictly for laboratory and research use only - not for human or veterinary use. 21+.

Is Retatrutide legal in United Kingdom?

The short answer: Retatrutide is offered in United Kingdom solely as a laboratory research material — not an FDA-approved drug for human or veterinary use. Regulatory treatment can depend on compound, intended use and applicable law. Here is what researchers ask most.

Retatrutide is a research chemical , not a medicine licensed by the MHRA, and is not a controlled substance under the Misuse of Drugs Act 1971. Every New-U vial is labelled “for laboratory and research use only - not for human use. 21+.” New-U supplies research compounds direct from the manufacturer to qualified researchers; supply or use as a human medicine is a separate regulatory matter and not what New-U does.

Nothing on this page is medical advice or a recommendation to administer any compound to a person.

All products are supplied strictly for laboratory and research use only - not for human or veterinary use. 21+.

How to buy Retatrutide in United Kingdom

Choose your Retatrutide pack

Open the Retatrutide product page - molecular weight, batch number and a downloadable Certificate of Analysis are shown up front. Where listed, choose a single-vial sample or a 10-vial research pack.

Check the Certificate of Analysis

Every batch is independently HPLC tested by Janoshik Analytics or Freedom Diagnostics. The COA shows identity, purity (>99%) and batch number - download it before ordering, not after.

Pay by card or crypto

Checkout accepts debit/credit cards and crypto. Prices settle in USD; your local currency is shown at checkout. Tracked United Kingdom delivery is a flat fee, free over the threshold.

Receive your tracked order

Orders typically dispatch within 48 hours, discreetly packed. Cold-chain handling is available for temperature-sensitive compounds. Most United Kingdom orders arrive in roughly 6–14 business days with email + SMS tracking.

United Kingdom delivery & payment

Buy Retatrutide across the UK

New-U ships Retatrutide to researchers throughout the UK - England, Scotland, Wales and Northern Ireland - with tracked delivery (£30 flat, free over £250). The same >99% HPLC-verified research material and batch Certificate of Analysis, wherever you are in the UK. For laboratory and research use only - not for human use. 21+.

Related research compounds

Other compounds researchers in United Kingdom order alongside Retatrutide - all lab-tested, all shipped with tracked United Kingdom delivery.

Buying Retatrutide in United Kingdom - FAQ

What is retatrutide?

Retatrutide (LY3437943) is a triple GLP-1 / GIP / glucagon receptor agonist studied in metabolic research. New-U supplies it as a research chemical only - for laboratory and research use, not for human use.

What purity is New-U's retatrutide, and can I see the COA?

Every batch is independently HPLC tested to >99% purity with mass-spectrometry identity confirmation. The batch Certificate of Analysis - lab, accession number and exact purity - is published on our retatrutide COA page and downloadable before you order.

Where can I buy retatrutide online?

You can buy retatrutide directly from New-U on the retatrutide product page. It ships as a single-vial sample or sealed 10-vial research pack where listed, with a batch-linked COA, tracked delivery, and card or crypto checkout. Supplied for laboratory and research use only - not for human use. 21+.

What is the best place to buy retatrutide?

The research-grade way to choose a supplier is to check for a public, batch-specific Certificate of Analysis from a recognised lab (Janoshik or Freedom Diagnostics), published pack quantities (single-vial samples and 10-vial packs where listed), and transparent pricing. New-U publishes its retatrutide COA openly and ships direct from the manufacturer - no relabelled stock.

Is retatrutide the same as a branded GLP-1 medicine?

No. Retatrutide is not an approved medicine and is not sold as one. New-U supplies it strictly as a research compound for laboratory use - not for human or veterinary use.

How is retatrutide shipped, and how long does delivery take?

Orders typically dispatch within 48 hours, discreetly packed. Cold-chain handling is available for temperature-sensitive compounds. Most orders arrive within roughly 6–14 business days depending on destination.

What pack sizes does retatrutide ship in?

Retatrutide ships as single-vial samples and 10-vial research packs where listed, across a range of mg strengths, direct from the manufacturer with a batch-linked COA.

Is it legal to buy retatrutide?

Retatrutide is sold strictly as a research chemical for laboratory use - it is not an FDA-approved medicine and is not for human or veterinary use. Every vial is labelled "for laboratory and research use only - not for human use. 21+." Check your local regulations before ordering.

Is "reta" the same as Retatrutide?

Yes - "reta" is the everyday shorthand researchers use for Retatrutide. New-U supplies Retatrutide strictly as a research compound for laboratory and research use only - not for human use. 21+.

Ready to buy Retatrutide in United Kingdom?

Buy retatrutide in United Kingdom with the paperwork in the open: >99% HPLC purity, a published batch Certificate of Analysis, single-vial samples and 10-vial research packs where listed, and tracked delivery. Supplied strictly for laboratory and research use - not for human use. 21+.

PRECISION. PURITY. PERFORMANCE.

Research peptides at >99% HPLC-verified purity, third-party tested by Janoshik Analytical & Freedom Diagnostics, with Certificates of Analysis published per released batch. Supplied strictly for laboratory research use.

Shop

All research compounds

Price list

Where to buy peptides

Research

Support

Ways to Pay

Shop by goal

Muscle & IGF Research

Tissue and Cellular Models

Regenerative Research

Cellular Senescence Research

Cognitive Research

Multi-Compound Blends

Shop by compound

CJC-1295 (without DAC)

Shop by region

Research use only (RUO). All products are sold strictly for laboratory and research purposes — not for human or veterinary consumption. Purchasers must be 21 or older.

Website & business operated by Hilxera Distribution Services LLC. Registered in Wyoming, ID: 2026-001928701.

[image: New-U Research Compounds logo and research peptide vial — Buy Retatrutide in United Kingdom]

Research use only — not for human consumption. All products are supplied strictly for laboratory research purposes.