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Market data · 9 suppliers · United Kingdom

Buy Mazdutide UK : 9 suppliers prices compared

9 of the suppliers we track list Mazdutide in or shipping to the UK. They are ranked by PepFinder Score, which combines reliability, selection, pricing, delivery, support and customer reviews, and shown with the prices they list per mg. Stores based in the UK come before those shipping in from abroad, whatever their score. We don't sell Mazdutide, and we give no guidance on its use. Only prices listed in GBP are shown here; stores that price in other currencies are on All regions.Also known as IBI362, LY3305677, Mazdu. Stores list it under any of these names, and all of them are matched here.

Prices checked 25 Sept 2026 · 29 listings · 26 in stock · Incretin analogues

Mazdutide · listed price per mg
GBP · 7 suppliersmedian £11.44/mg
£4.80/mg£23.13/mg

Each currency is shown separately; prices are never converted.

Regulatory status

Mazdutide is an investigational compound. Material sold as a 'research' product is not an approved medicine.

In United Kingdom the regulator is the Medicines and Healthcare products Regulatory Agency (MHRA). Rules on buying, importing and using this product differ by country. Suppliers list it for laboratory research; nothing here is medical advice.

Showing 9 of 9 suppliers · prices in GBP only, never converted

  1. 01
    Power Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    79 products tracked · Delivery Most UK orders are dispatched within 24 hours and arrive within 1–3 working days using tracked delivery. · Ships to 36 countries

    Pays byCard
    7.3/ 10PepFinder Score
    Listing as namedSizePricePer mgStock
    MazdutideAs listed£40.00—Out of stockOn their site ↗

    Prices as last checked on their site. The supplier confirms the final price and availability.

  2. 02

    Nupex

    GB based

    1,322 products tracked

    6.8/ 10PepFinder Score

    From £7.36/mg (50mg)

    Listing as namedSizePricePer mgStock
    MAZDUTIDE - Research Grade Peptide2mg£46.25£23.13/mgOut of stockOn their site ↗
    MAZDUTIDE - Research Grade Peptide5mg£69.25£13.85/mgIn stockOn their site ↗
    MAZDUTIDE - Research Grade Peptide5mg - Ultimate£96.25£19.25/mgIn stockOn their site ↗
    MAZDUTIDE - Research Grade Peptide10mg£120.50£12.05/mgIn stockOn their site ↗
    MAZDUTIDE - Research Grade Peptide10mg - Ultimate£168.50£16.85/mgIn stockOn their site ↗
    MAZDUTIDE - Research Grade Peptide20mg£210.25£10.51/mgIn stockOn their site ↗

    + 11 more on the full catalogue.

    Prices as last checked on their site. The supplier confirms the final price and availability.

  3. 03
    Opti-Gen Peptides logo
    COA page linked, not reviewed

    164 products tracked · Ships to 1 country

    3.7 Trustpilot(1)
    6.8/ 10PepFinder Score

    From £4.80/mg (10mg)

    Listing as namedSizePricePer mgStock
    Mazdutide Disposable Pen+ Case10mg£78.00—In stockOn their site ↗
    Mazdutide 10mg10mg£48.00£4.80/mgIn stockOn their site ↗
    Mazdutide Disposable Pen+ Case20mg£120.00—In stockOn their site ↗

    Prices as last checked on their site. The supplier confirms the final price and availability.

  4. 04

    Peptide-Shop

    GB based
    COA page linked, not reviewed

    47 products tracked

    6.1/ 10PepFinder Score

    From £10.00/mg (10MG)

    Listing as namedSizePricePer mgStock
    MAZDUTIDE 10MG10MG£100.00£10.00/mgIn stockOn their site ↗

    Prices as last checked on their site. The supplier confirms the final price and availability.

  5. 05
    Peptides UK 4U logo
    Third-party testing statedCOA page linked, not reviewed

    49 products tracked · Ships to 1 country

    Pays byCrypto
    5.6/ 10PepFinder Score

    From £6.20/mg (10mg)

    Listing as namedSizePricePer mgStock
    Mazdutide 10mg — Research Peptide UK10mg£62.00£6.20/mgIn stockOn their site ↗
    Mazdutide 10mg — UK Research Peptide10mg£62.00£6.20/mgOut of stockOn their site ↗

    Prices as last checked on their site. The supplier confirms the final price and availability.

  6. 06
    British Peptides logo
    Third-party testing statedCOA page linked, not reviewed

    88 products tracked

    4.5 Trustpilot(17)
    5.5/ 10PepFinder Score

    From £5.00/mg (10mg)

    Listing as namedSizePricePer mgStock
    Mazdutide 10mg10mg£50.00£5.00/mgIn stockOn their site ↗

    Prices as last checked on their site. The supplier confirms the final price and availability.

  7. 07
    BioVanta Research logo
    Third-party testing statedCOA page linked, not reviewed

    23 products tracked · Ships to 1 country

    5.4/ 10PepFinder Score

    From £6.50/mg (10mg)

    Listing as namedSizePricePer mgStock
    Mazdutide10mg£64.95£6.50/mgIn stockOn their site ↗

    Prices as last checked on their site. The supplier confirms the final price and availability.

  8. 08
    UK Peptide Store logo

    99 products tracked · Ships to 1 country

    4.5/ 10PepFinder Score

    From £11.00/mg (10mg)

    Listing as namedSizePricePer mgStock
    Mazdutide5mg£89.99£18.00/mgIn stockOn their site ↗
    Mazdutide10mg£109.99£11.00/mgIn stockOn their site ↗

    Prices as last checked on their site. The supplier confirms the final price and availability.

  9. 09
    RETA LAB UK logo
    Third-party testing statedCOA page linked, not reviewed

    78 products tracked · Ships to the UK

    Pays byCardBank transferCrypto
    –PepFinder Score
    Listing as namedSizePricePer mgStock
    Mazdutide 10mg10mg——In stockOn their site ↗

    Prices as last checked on their site. The supplier confirms the final price and availability.

Told when Mazdutide gets cheaper in the UK

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At a glance · 25 Sept 2026

Suppliers serving the UK
9 list Mazdutide, 26 listings in stock
Price per mg (GBP)
£4.80/mg to £23.13/mg, median £11.44/mg, across 25 listings from 7 suppliers
Test certificates
Not yet collected by PepFinder for Mazdutide; check each supplier's site. How to read a COA
Legal status in the UK
Most research peptides are not controlled drugs in the UK, but selling or supplying an unlicensed medicine is an offence under the Human Medicines Regulations 2012; growth hormone and HCG are Class C controlled drugs. Full summary with sources

What Mazdutide is

Mazdutide is a once-weekly peptide that activates both the GLP-1 receptor and the glucagon receptor. Developed by Eli Lilly and licensed to Innovent Biologics for China, it became the first drug of its class to be approved anywhere when China licensed it for weight management in June 2025 under the brand name Xinermei. It is not approved in the US, UK, EU or Australia as of September 2026, so mazdutide sold online outside China as a “research” product is unlicensed material, not a medicine. Read the full Mazdutide guide, with the published research and references.

Mazdutide market over time

The median listed price per mg across every tracked supplier listing Mazdutide in each currency, recorded daily from validated listings only. Days with too few listings to publish are left out, not estimated. How we validate prices

GBP · median per mg £11.46/mg

We began recording daily market statistics on 25 Sept 2026. A trend appears once there is more than one day of data.

Catalogue changes, last 30 days

119 listings added · 0 withdrawn

  1. 25 Sept 2026Xcel PeptidesNew listing: Mazdutide (12mg)
  2. 25 Sept 2026Xcel PeptidesNew listing: Mazdutide (6mg)
  3. 25 Sept 2026Vital Core Researcher AccessNew listing: Mazdutide
  4. 25 Sept 2026VPeptideNew listing: Mazdutide — 10 mg (single-vial)
  5. 25 Sept 2026VPeptideNew listing: Mazdutide — 10 mg (10-pack)
  6. 25 Sept 2026UK Peptides OnlineNew listing: MDT10 Mazdutide 10mg × 10 vials (10mg × 10)
  7. 25 Sept 2026UK Peptide StoreNew listing: Mazdutide (10mg)
  8. 25 Sept 2026UK Peptide StoreNew listing: Mazdutide (5mg)
  9. 25 Sept 2026The Peptide CoveNew listing: Mazdutide (10mg)
  10. 25 Sept 2026Swiss Peptide LabNew listing: Mazdutide

Before you choose a Mazdutide supplier

Price per mg is only half the comparison. Check that the supplier publishes a certificate of analysis for the batch it is selling, ideally from an independent laboratory, and that the certificate confirms identity as well as purity: our guide on how to read a COA shows what to look for. A price far below the rest of the list is more often a warning than a bargain; peptide prices explained sets out why.

For what Mazdutide is and what published studies have found, see our Mazdutide guide. Handling questions are covered in how to store peptides, and the peptide calculator converts a vial size and water volume into concentration and syringe units. Rules on buying and importing differ by country: read are peptides legal in the UK? and see all suppliers serving the UK.

Checking a Mazdutide certificate of analysis

  1. The certificate names a laboratory you can find independently, and ideally one with no stake in the result.
  2. It carries a batch or lot number that matches the product page or the vial label, and a test date.
  3. It confirms identity by mass spectrometry, not only purity by HPLC. Purity alone does not show the vial contains Mazdutide.
  4. It includes the chromatogram and mass spectrum, not just a summary table.
  5. Where the laboratory offers online verification of its reports, the report number checks out.

Red flags

  • No certificates at all, or certificates available only “on request”.
  • The same certificate used for several products or several years of stock.
  • Payment only by cryptocurrency or bank transfer, with a discount for paying that way.
  • A price far below every other supplier on this page.
  • No company name, address or way to contact the business other than a web form.
  • Vials labelled only with a code rather than the product name and strength.

How to spot a fake peptide supplier explains each of these in more detail, and third-party peptide testing covers what independent results can and cannot prove.

Vials, capsules and pre-mixed products

Most research peptides are sold as freeze-dried (lyophilised) powder in sealed vials, which is mixed with a diluent such as bacteriostatic water before use in the lab. Some suppliers also sell pre-mixed solutions, nasal sprays or capsules under the same name. These are different products with different stability and dosing, so compare price per mg only between the same form, and check which form a listing is before comparing it with the rest of the table.

Mazdutide in the UK: questions

Where can I buy Mazdutide in the UK?

9 of the suppliers PepFinder tracks list Mazdutide and are based in or ship to the UK. The highest rated are Power Peptides, Nupex, Opti-Gen Peptides. The list on this page is ranked by PepFinder Score, which weighs reliability, delivery, pricing, support and customer reviews, with stores based in the UK placed before those shipping in from abroad; nobody pays to be included or to rank higher.

How much does Mazdutide cost in the UK?

Listed prices in GBP run from £4.80/mg to £23.13/mg, median £11.44/mg, across 25 listings from 7 suppliers. Compare price per mg rather than price per vial, and only within one currency; a price far below the rest is more often a warning than a bargain.

What sizes is Mazdutide sold in?

Suppliers on this page list Mazdutide in 2mg, 5mg, 5mg - Ultimate, 10mg, 10mg - Ultimate, 10MG. Most research peptides are sold as freeze-dried powder in sealed vials; capsules, sprays and pre-mixed solutions are different products, so compare price per mg only between the same form.

Is it legal to buy Mazdutide in the UK?

Most research peptides are not controlled drugs in the UK, but selling or supplying an unlicensed medicine is an offence under the Human Medicines Regulations 2012; growth hormone and HCG are Class C controlled drugs. Our page on whether peptides are legal in the UK sets out the rules with a link to every source. This is general information, not legal advice.

Can Mazdutide be shipped to the UK?

Non-controlled medicines can be imported for your own use without an import licence, but Border Force can seize quantities above reasonable personal use, and controlled drugs such as growth hormone and HCG cannot be posted to you from overseas. Each supplier on this page shows where it is based, so you can see whether an order would cross a border.

How do I check a Mazdutide supplier's test results?

Ask for a certificate of analysis for the batch being sold, and check that it names the laboratory, the batch number and the test date, and that it confirms identity by mass spectrometry as well as purity by HPLC. PepFinder has not yet collected certificates for Mazdutide from these suppliers, so check each supplier's own site.

How this list is built: suppliers appear because they list Mazdutide on their own website, read by our catalogue checks; nobody pays to be included or to move up. Ranking is by PepFinder Score. Prices, sizes and stock are as each site listed them when checked and may have changed. Provisional scores are based on incomplete research.