Retatrutide supplier reviews
One page per vendor, with every fact we used to score it and the source it came from. Ordered as in our ratings: the sponsored partner first, then by score.
100 LeoLabSponsoredUK-facing online seller listing retatrutide in seven vial sizes from 10mg to 60mg, with Janoshik test reports published on its site. No registered company details are shown on the site.Checked 30 September 2026100 Astra LabsUK shop operated by Astra Scientific Ltd selling retatrutide in a 10mg vial, with a public COA hub that links each batch to its Janoshik verification record.Checked 30 September 2026100 BioSupply UKUK-dispatched shop selling retatrutide as 'Reta' in 10mg, 20mg and 30mg lyophilised vials, with a PeptideVerify HPLC and LC-MS certificate for batch BSUK003 linked from the product page.Checked 30 September 2026100 ExtolXTrading name of ExtolX Limited, a Preston-registered company listing retatrutide in 10mg and 20mg vials with a Janoshik verification link on each product page; both sizes were out of stock on 30 September 2026.Checked 30 September 2026100 Nilah LabsUK Shopify shop run by Nilah Ltd selling Retatrutide under the name 'GLP-3 RT' in 10mg to 40mg vials, with free Royal Mail Tracked 24 delivery. Certificates are from Bio-Analysis Centre and published on the site's testing-results pages.Checked 30 September 2026100 Peptify UKLondon-registered company selling retatrutide under the name 'GLP-3 (RT)' in a single 10mg vial, with a Janoshik report commissioned in the shop's own name. Payment is by Open Banking or cryptocurrency.Checked 30 September 2026100 Peptology LabsLondon-registered company selling retatrutide under the name 'RT' in 10mg, 20mg and 30mg vials, with batch-specific Janoshik reports linked from each product page.Checked 30 September 2026100 Simply PeptidesUK WooCommerce shop operated by Research Stack Ltd selling Retatrutide in 10mg and 30mg vials, with Janoshik reports for several batches on its lab reports page. Payment is by Fena pay-by-bank or Bitcoin.Checked 30 September 2026100 Zentra PeptidesTrading name of Zentra Brands Limited, selling retatrutide as 'RT3' in 10mg to 40mg vials, with Sonic Laboratories certificates published on a batch verification page.Checked 30 September 202690 AllMyPeptidesTrading name of AMP RESEARCH LTD, a Manchester-registered company selling retatrutide in 10mg to 60mg vials, with Janoshik blind-panel reports published for the 10mg, 20mg and 30mg batches.Checked 30 September 202690 My RetaUK reseller of APEX-branded 'Retaklik' retatrutide pre-filled pens (40mg and 60mg), plus a retatrutide–cagrilintide pen on pre-order. It sells no retatrutide vials, and the Janoshik reports it shows are labelled as historical samples.Checked 30 September 202685 Momentum PeptidesUK-dispatched shop selling retatrutide in 10mg, 20mg and 30mg vials, each supplied as a kit with bacteriostatic water, wipes and insulin needles, with August 2026 Janoshik reports issued to Momentum Peptides for all three sizes.Checked 30 September 202685 Peptide-ShopNorthern Ireland-based WooCommerce shop selling retatrutide vials from 10mg to 60mg, each supplied with a 3ml vial of reconstitution water. The product page links to one Janoshik verification report for a 60mg sample.Checked 30 September 202685 Polygon PeptidesTrading name of DEB Ventures Ltd, a London-registered company selling retatrutide as a single 10mg vial, with a Janoshik report from December 2025 shown on the product page.Checked 30 September 202685 Pyrox LabsUK-based WooCommerce shop selling Retatrutide (RT3) in single vials from 5mg to 60mg, with Janoshik verification links listed per batch in a public COA hub. The site also sells syringes, wipes and bacteriostatic water, separately and in starter kits.Checked 30 September 202685 UK Peptide CoLondon-addressed shop selling retatrutide as 20mg and 40mg vials, as 20mg, 40mg and 60mg pens, and in a retatrutide–cagrilintide stack. A PeptideVerify certificate covers one 40mg batch.Checked 30 September 202675 Intel PeptidesSmall WooCommerce shop that describes itself as UK based, selling retatrutide under the name 'GLP-3 RT' in 10mg and 20mg vials and as a 20mg kit with a reusable injector pen. One Janoshik report, for a 20mg batch tested in May 2026, is shown on its Lab Analysis page.Checked 30 September 202675 Nova PeptidesUK shop selling retatrutide (listed as 'Retatrutide GLP3') in 10mg and 30mg vials, with a Janoshik verification link on each product page.Checked 30 September 202675 Peptide ProductsUK shop run by Peptide Products Ltd selling branded pre-filled 40mg retatrutide pens (Alluvi and Synexa) and 10mg, 20mg and 40mg vials, with free Royal Mail Tracked 24 delivery and Stripe card checkout. The only retatrutide lab report is a Janoshik test on the Alluvi 40mg pen.Checked 30 September 202675 Peptides NIBelfast-based WooCommerce shop selling Retatrutide (listed as 'Reta') in 10mg, 20mg and 30mg vials, each linked to a Janoshik test report. Orders ship from Northern Ireland by Royal Mail Tracked 24.Checked 30 September 202675 Peptides UK 4UUK shop selling retatrutide in 10mg to 60mg vials and as pre-filled 20mg, 30mg and 40mg pens, with Analiza Białek reports published for the 20mg, 30mg and 40mg batches. Payment is by Pay by Bank only.Checked 30 September 202675 Red Panda PeptidesLow-priced UK shop with a recent Janoshik report on its 30 mg retatrutide batch. The site names no company, and Trustpilot has removed its profile.Checked 30 September 202670 Aura Peptides UKUK shop selling retatrutide as 'Reta GLP-3' in 10mg and 20mg vials and a 20mg pre-filled pen kit with pen needles. No company is named and no lab report is published; COAs are offered on request.Checked 30 September 202670 JGPep+ (JG Peptides Plus)UK-fulfilled shop listing retatrutide as 'GLP-3' in 5mg to 40mg vials, with card and pay-by-bank checkout. It publishes COAs for several other peptides, but none for retatrutide, and the site names no company.Checked 30 September 202670 Lumia LabUK shop, a trading name of Lumia Scientific Ltd, selling retatrutide vials in 10mg, 20mg, 30mg and 40mg sizes. Its certificate of analysis page was empty when checked, so no retatrutide lab report is published.Checked 30 September 202670 MM PeptidesLondon-registered shop selling retatrutide as 'MM-RT3' in 10mg and 20mg vials, with Royal Mail Tracked 24 delivery. No retatrutide lab report is published; a certificate of analysis is offered on request.Checked 30 September 202670 Onvay LabsLondon-registered company (Onvay LTD) selling retatrutide as 'Reta' in 10mg and 20mg vials, with card, Apple Pay and PayPal checkout. It says batches are tested by Janoshik, but reports are sent privately on request and not published.Checked 30 September 202660 Genetic ResearchUK Shopify shop run by Genetic Research Limited, selling retatrutide under the name 'RT' in 10mg and 20mg vials. No retatrutide lab report is published; the product page asks buyers to contact the shop on Signal for HPLC details.Checked 30 September 202655 Bionik PeptidesShop run by Bionik Wellness Ltd, a London-registered company, selling retatrutide in 10mg to 60mg vials with Royal Mail delivery. The site names Janoshik as a testing partner, but no retatrutide report was shown on the product page.Checked 30 September 202655 Next Day PeptidesSmall UK shop focused on GLP-1-type peptides, selling retatrutide in 5mg vials singly or in six-packs, with tracked next-day delivery included. It names no company, and its product page includes dosing instructions.Checked 30 September 202655 PeptagenixUK shop selling retatrutide as a 20 mg vial and a 20 mg pre-filled pen. No lab report for retatrutide is published, and the site does not give a company number.Checked 30 September 202655 Peptide VaultUK shop selling retatrutide only as pre-filled pens (15mg, 30mg and 60mg), with card checkout. The site names no company, publishes no lab reports and has no terms or delivery policy pages.Checked 30 September 202655 Pondok PeptidesUK storefront operated by Oxford Research Syndicate Ltd, selling retatrutide in 10mg, 20mg, 30mg and 40mg vials. No retatrutide lab report is published; the site says a certificate of analysis is available on request.Checked 30 September 202655 Power PeptidesUK-only shop selling retatrutide (listed as 'Reta') in 10mg to 40mg vials, sent by Royal Mail. The site says batch COAs are published, but its COA archive page was empty when checked.Checked 30 September 202655 RetaResearch LabsSmall UK shop, trading name of Rexa Laboratories LTD, selling a 10mg retatrutide vial and a pre-filled 40mg retatrutide pen. It publishes no lab reports online and says a certificate of analysis ships with each order.Checked 30 September 202620 Vitalis LabsSmall Hostinger-built shop selling retatrutide as a 50mg vial and a 50mg pre-filled pen kit. The site names no company and publishes no lab reports, delivery terms or returns policy.Checked 30 September 2026