Retailer directory
UK retailer directory
Oliver Mackman · Editorial director · Best Business Loans Ltd (16833937)
Last reviewed: 2026-08-19
Independent, and paid nothing. We take no commission, no referral fee and no payment from any retailer, clinic or pharmacy on this site. Outbound links are ordinary untracked links. How we are funded.
Browse UK retailers and clinics by tier. Editorial selections, never paid placements. New to this? Read our guide on how to choose a UK peptide retailer.
PeptideClear is a comparison and information service, not a pharmacy and not a clinic. Every outbound link leads to a third-party operator; none are paid placements. Retailer inclusion is governed by our methodology, not commercial terms. Read our funding disclosure.
Editorial methodology
Research-peptide retailers are scored on the free PeptideClear Trust Index: certificate of analysis (CoA) transparency, Companies House business transparency, and a Responsible Practice assessment. Other categories are selected editorially. Inclusion is never paid. Read our full methodology.
Cosmetic peptide skincare
Topical serums and creams containing peptides such as GHK-Cu, Matrixyl 3000, and palmitoyl tripeptides. Sold as cosmetics, not medicines. No prescription required.
More retailers coming soon
We are currently in the Awin and Impact approval queue for cosmetic skincare retailers. Planned additions include:
- · Cult Beauty
- · LookFantastic
- · Boots
- · Space NK
- · Beauty Pie
In the meantime, our cosmetic peptides guide covers ingredient-level detail on what to look for.
Collagen brands
Ingestible collagen peptide supplements: marine, bovine, and vegan-builder formats. Sold as food supplements, not medicines. These brands are available via direct-to-consumer subscription or major UK retailers.
Best for marine collagen sourcing
Collagen brand · From £39 a month
UK collagen brand with marine-sourced peptides and a clean ingredient deck. Strong on women-targeted skin and joint dosing.
Best for buyers wanting collagen + adjacent skin-health stack from one brand (subscription model)
Collagen and skin-health brand · Collagen powder from GBP 29; bundles from GBP 69
UK collagen and skin-health brand with 75+ SKUs across collagen powders, capsules, bundles, and LED light therapy. Subscription model with bundle discounting.
Best for catalogue breadth
Collagen brand · From £25 a month
US-origin collagen brand with broad UK distribution. Wide product range, mainstream pricing.
More collagen brands are pending Awin approval. See our collagen guide for ingredient and format comparisons.
Research peptide retailers
UK retailers selling synthetic peptides for laboratory research purposes only. Every retailer in this section operates under a research-use-only framework. These compounds are not licensed medicines. They are not approved for human or animal consumption in the UK.
Research use only. Not for human or animal consumption. Your prescriber is the correct route for any prescription-only medicine.
Research peptide retailer
CoAs only on-request, no named lab; own GHK-CU page pairs RUO disclaimer with benefit language ('anti-aging','wound healing'); footer CH number resolves to misspelled 'RESEARCH CORPERATION LTD'.
Research peptide retailer
Brand-new entity (incorporated 21 Jul 2026, Chatham virtual-office). Publishes downloadable 'research verification reports' citing Janoshik but these are company-authored summaries not raw per-batch reports with lot numbers/QR. Bank-transfer-only checkout. Product copy softly implies tissue-repair benefits despite RUO framing.
Research peptide retailer
Each product page embeds a static screenshot labelled a Janoshik report, not a live link, lab named but CoA not independently verifiable.
Research peptide retailer
Claims per-batch testing and CoAs but names no lab, and the dedicated /coas/ page shows no actual certificates: text there says to contact support to request the most recent testing data, no visible document instance or QR/lookup tool.
Best for mainstream buyers wanting an established UK operator with a strong review record
Research peptide retailer
Established London research-peptide retailer (Anglo-Peptides Ltd) with HPLC/MS testing, RUO framing and a strong Trustpilot footprint.
Research peptide retailer
FAQ claims downloadable CoA on every product page but none found; testing lab is unnamed German lab under NDA, reports not publicly available.
Research peptide retailer
Live, functioning retailer with an open (no-gate) CoA archive of 12+ batch-specific certificates, each linking directly to janoshik.com test pages that redirect to verify.janoshik.com, confirming this is Janoshik's own third-party portal. RUO disclaimers appear sitewide and per-product, no benefit claims observed, no oral/capsule products sold.
Research peptide retailer
Per-batch CoAs openly listed by batch code and date, self-branded Janoshik Verification Hub linking to verify.janoshik.com, no login required.
Research peptide retailer
Homepage names Janoshik Analytical and claims every batch is tested, but no CoA link, download, or dedicated lab-results page exists anywhere (all checked paths 404); TB-500 product page carries explicit consumer benefit claims directly above its RUO disclaimer.
Research peptide retailer
No downloadable/verifiable CoA system, only vague 'we can provide COAs' FAQ line. No lab named, no UK company registration disclosed. Checkout/support mainly via WhatsApp/Telegram and a gmail.com contact address.
Research peptide retailer
Runs a genuine searchable per-batch CoA database naming Janoshik as the testing lab with dated batch-specific purity results, but each certificate resolves only to a JPG image hosted on Benchmark's own server with no link to Janoshik's own verification portal.
Research peptide retailer
Per-batch dated CoAs openly linked from a central lab-reports page and product pages, name Janoshik Analytical, include a direct verify link to their own portal.
Research peptide retailer
Strongest CoA setup in batch, independently verifiable on janoshik.com/verify. Companies House lists the registered office for this entity (incorporated 13 Nov 2025) as York, not London as the brand name suggests; we have not independently confirmed whether that reflects where the business actually operates versus a registered-agent address, so this is noted as a discrepancy to verify, not a settled fact.
Research peptide retailer
~45 downloadable CoA PDFs, but named tester 'Analiza Bialek' reads as generic Polish phrase for 'protein analysis' not a clear lab brand - treat with caution.
Research peptide retailer
Batch test results available on request with no named lab, shop categories market under outcome labels like Anti-aging and Weight Management.
Research peptide retailer
Publishes genuine third-party Janoshik HPLC certs via direct lab-hosted verification links, clear RUO disclaimers per product. But no UK company registration disclosed anywhere (Privacy Policy/Terms have unfilled '[Insert Company Name]' placeholders), and uses benefit-style language (BPC-157 'accelerating recovery from injury').
Research peptide retailer
Claims per-batch CoAs and HPLC/MS testing but CoAs must be requested by email, no lab named, claims UK registration but discloses no company number/address and no matching CH entity found. 5-Amino-1MQ capsule product carries direct fat-loss benefit claim on the one page lacking a RUO disclaimer.
Buyers wanting peptides plus broader supplements + nootropics + SARMs from a single multi-category UK store.
Research peptides + SARMs + supplements supermarket · Per peptide, varies
UK arm of Polish operator biolabshop.pl. Broader than peptides: peptides, SARMs, nootropics, supplements, skincare across 400+ products. Dedicated /peptides-calculator/ tool page. SHOPONLINEB LTD UK shell (2025) over the Polish parent. ProtonMail-only contact.
Research peptide retailer
No CoA, lab-testing page, named lab, or RUO disclaimer found anywhere; catalogue includes oral capsule items.
Research peptide retailer
biolabspeptides.com has a per-product COA tab linking a batch-specific Freedom Diagnostics report as an image; sibling bioflexpeptides.com claims every batch is tested but shows no actual CoA and sells an oral-capsule product. mybiolabshop.com no longer shares an operator with these -- it now redirects to biolabshop.co.uk, an unrelated already-separately-listed general supplements storefront, so the three-way same-operator premise did not hold on re-check.
Research peptide retailer
Names Janoshik but claimed CoA-on-product-page didn't hold up on checked product; registered at mass-formation Covent Garden address; products grouped by human-benefit categories ('Fat Loss','Anti-Aging') despite RUO framing.
Buyers wanting peptides + SARMs + named-blend Peptide Sets from one supplier, and willing to arrange their own independent test via the named lab partner.
Research peptide retailer (peptides + SARMs) · £20.99 to £124.99 per vial
UK research peptide retailer + SARMs + Peptide Sets (dual-research blends). Site now says the founder has "worked within the peptide sector since 2012" (softened from an earlier "founded 2012" framing); trading entity Prime-Physique Ltd was incorporated August 2025. No founder names or university affiliation currently stated anywhere on-site (re-checked 18 Aug 2026, previously recorded as named). Independent testing partner Vanguard Laboratory (US) is now named, but no per-batch CoA is published or linked on product pages; customers are directed to commission their own test via Vanguard.
Research peptide retailer
Homepage banner repeatedly claims 'THIRD-PARTY TESTED' with '99.9% purity' but no lab name, CoA document, QR code, or lab-reports page exists anywhere on the site to substantiate the claim.
Research peptide retailer
Trades on-site as 'BluePeak' not 'Blue Peak Peptides'. Names credible lab (Janoshik) with lot-specific CoA claims but gated behind email request, 'verify on Janoshik' link is a non-functional placeholder. Own Terms page lists HQ as Hong Kong despite claiming England & Wales jurisdiction - no matching UK CH entity.
Best for buyers wanting batch CoAs included and clear RUO compliance copy
Research peptide retailer
UK CoA-verified research-peptide supplier trading since 2022 with >=99.1% HPLC claims and a Trustpilot profile.
Research peptide retailer
Clear RUO disclaimers sitewide, but CoA claims inconsistent (image-only 'test report' on some product pages, absent on others), no named lab, no batch/QR verification. Registered address (5 Brayford Square, London E1 0SG) is documented shared registered-office/mail-forwarding address, no matching CH entity found.
Research peptide retailer
No CoA process of any kind, no named lab, no company registration/address, no findable Trustpilot. Unlike every other retailer in this batch, could not confirm ANY research-use-only disclaimer at all despite being a live functioning storefront.
Research peptide retailer
Homepage states 99%+ HPLC Purity, COA Available on request but no downloadable link or named lab found; MK-677 and Tesofensine tablets sold alongside injectable vials.
Research peptide retailer
Claims UK-based (England & Wales law) but discloses no company name/number/address anywhere. CoA is a single static image, no batch-level/QR verification, no named lab. No CH or Trustpilot match found.
Research peptide retailer
Explicit purity/lab-testing claims ('HPLC Verified','every batch independently lab-tested') but no dedicated CoA page anywhere, no lab named, no UK company registration disclosed, no card payment option (bank-transfer/crypto only).
Research peptide retailer
CoA page shows only a labelled Sample table, no specific lab named beyond independent UK laboratories, no verification link.
Research peptide retailer
Genuine young UK company (30 Sept 2025), but CoA page claims certificates downloadable from product pages when none could actually be found.
Best for a broad catalogue with independent CoAs and responsive WhatsApp support
Research peptide retailer · £4.99 to £220
UK research-peptide retailer with per-batch HPLC and independent CoAs and explicit RUO framing across a broad catalogue.
Best for third-party Janoshik CoAs and active education content
Research peptide retailer · £3.99 to £79.99
London research-peptide retailer with 99%+ HPLC (Janoshik), third-party CoAs, RUO framing and a Trustpilot profile.
Research peptide retailer
NAME MISMATCH: domain actually trades as 'CoreLabs Peptides'/'CoreLab Supplies', not 'Core Peptides' (unrelated US brand corepeptides.net). Incorporated 7 Jan 2026 at mass-formation address; Testing page 'Coming Soon'.
Research peptide retailer
Every bottle is said to carry a QR code and dated CoA reachable via an open, no-login peptide selector on their own /lab-reports/ page, but the QR resolves to Crown's own website (not an independent lab portal) and no specific lab is ever named, only 'HPLC and MS' methods cited.
Buyers wanting the broadest catalogue of delivery formats (vials + pens + nasals + capsules + topicals) in the UK segment.
Research peptide retailer (US parent, UK subdomain) · BPC-157 £11.46 to £189.22 (volume tiers per SKU)
UK-localised subdomain of US-headquartered Direct Peptides (trademark held by Aspire Labs, Texas). Broadest format coverage in the UK segment: lyophilised vials, pre-mixed pens, nasal-spray stacks, capsules, topical cosmetic peptides. 8 years trading (since ~2017). 20 percent first-order discount on dedicated /first-order/ page.
Customers wanting peptides and SARMs from one supplier, or who prefer crypto payment.
Research peptide retailer (peptides + SARMs) · Per peptide, varies
UK-shipping retailer with research peptides alongside SARMs. Crypto payment option for EU customers in addition to cards.
Research peptide retailer
Advertises 3rd Party Tested and FDA-registered cGMP labs as taglines but has no dedicated lab-testing page, names no lab, publishes no CoA; sells oral capsule peptides carrying benefit language, RUO disclaimer confined to a popup not the product listing.
Buyers who want personal owner-accountability via WhatsApp and prefer CoAs visible in product images rather than gated. Strong stack catalogue.
Research peptide retailer · BPC-157 from £18.99, Wolverine Stack discounted
Family-run Newcastle research peptide retailer (Rian, Victoria, Leah Redman). Owner-fronted WhatsApp on every page. CoAs photographed into the product gallery (COA in image) rather than gated. Heavy on named-stack bundles (Wolverine, Hulk, Ultimate Bundle). Crisp live chat sitewide. Personal accountability is the trust play.
Research peptide retailer
dtspharmacy.com and globalpenpeptide.com run identical Shopify navigation and copy consistent with common ownership; neither has any CoA or lab-testing page, both 404, product pages carry aggressive health-benefit claims beside the RUO disclaimer.
Research peptide retailer
No CoA program is disclosed anywhere on the site, only a vague homepage claim that products are 'batch-tested for purity, stability, and consistency'; the JS-rendered shop consistently failed to load so individual product listings could not be verified.
Research peptide retailer
Dated per-batch CoAs are openly listed at /coas with a QR-code claim of third-party verification, but the QR/View-COA links resolve to Essential's own site and no lab is ever named.
Research peptide retailer
Now 301-redirects entirely to expresspeptides.co.uk, confirming same operator Prism Industries Ltd, FAQ admits third-party CoAs not currently issued.
Research peptide retailer
About Us claims 'every product undergoes third-party testing' but no CoA document, named lab, or access point exists anywhere on site; RUO wording is confined to the Legal Notice page and absent from product pages carrying claims like 'enhances fat loss' and 'clinically validated'.
Research peptide retailer
Homepage claims '99%+ pure, backed by independent testing' but names no lab and no CoA page/document was found anywhere (quality page 404s); RUO disclaimer confirmed sitewide in footer.
Research peptide retailer
CoAs vague 'on request', no named lab; likely CH match (17136088) is a virtual office with active strike-off proposal, doesn't match Trustpilot's Coventry trading address.
Research peptide retailer
Open no-login CoA PDFs per product on dedicated HPLC Testing page; lab 'Analiza' visible in filenames but never named in prose; same filename pattern per product line suggests not genuinely per-batch. Registered at 124 City Road EC1V 2NX, mass virtual-office (~6000 companies). Sells a 'Capsule Research' line despite RUO framing.
Research peptide retailer
No CoA, lab-testing, or quality-verification page or claim exists anywhere on the site; listings like 'Regenerative Energy and Anti Aging Blend' carry explicit benefit claims ('boosts collagen and elastin', 'fights fatigue') despite the research-only framing.
Research peptide retailer
Batch CoAs by email/WhatsApp only, explicitly no QR/batch-verification; CoA contact address is on a different domain than the shop; no UK company registration disclosed.
Research peptide retailer
Functions as a review/comparison site rather than a direct retailer, Buy Now redirects to leolab.co.uk, no CoA, no lab, no RUO disclaimer, explicit health claims.
Researchers who want transparent third-party HPLC batch documents and a less hyped brand voice.
Research peptide retailer · Per peptide, varies
UK research peptide retailer with third-party HPLC plus transparent batch documentation. Plays the credibility lane alongside Pure Peptides UK and Tide Labs.
Research peptide retailer
Sells capsule-form peptides with a per-product RUO disclaimer, but no CoA, lab-testing page, or named third-party lab exists anywhere, benefit-framed shop categories in product navigation.
Research peptide retailer
Strongest CoA practice in this batch: dedicated CoA page links each peptide directly to Janoshik's own verification URLs, no login/request needed. But no UK company registration number disclosed anywhere on site.
Research peptide retailer
Sitewide RUO disclaimer but no CoA/lab-testing practice found anywhere; no company registration shown; live-chat widget labels operator 'LGP INC', inconsistent with 'UK-based supplier' framing.
Research peptide retailer
Each product links a per-item 3rd Party Test Report page but it's only a screenshot PNG with no lab named, BPC-157 product page carries no RUO disclaimer and makes direct benefit claims.
Research peptide retailer
Original domain no longer resolves; the live LeoLab UK site claims validation by third-party lab testing but names no lab, no CoA page, pairs RUO disclaimer with explicit weight-loss/healing benefit claims.
Research peptide retailer
Open, no-login batch-number lookup returns a dated per-batch HPLC/LC-MS result, but it checks against Lucid's own internal records, not a named third-party lab's portal.
Best for a named-entity UK retailer with COA + MSDS and card payment
Research peptide retailer · £3.50 to £89.99
UK research-peptide retailer (trading name of I.H Distributions Ltd, London) with RUO framing and COA/MSDS availability.
Research peptide retailer
CoA page hosts 13 dated Test Report files but each is a plain PNG screenshot, no specific third-party lab ever named despite repeated third-party-tested language.
Research peptide retailer
No CoA, lab-testing, or verification page exists anywhere despite active sale of tablet-form BPC-157 with explicit healing claims on the product page.
Research peptide retailer
Fully live with a public CoA page listing per-batch certificates linking directly to Janoshik Analytical's own verification portal.
Best for HPLC verification per product
Research peptide retailer · Per peptide, varies
UK research peptide retailer with HPLC-verified purity claims and CoAs included on orders. Operates under research-use-only framing.
Research peptide retailer
Does NOT publish own CoAs. Runs an 'Independent Quality Assurance Guarantee' reimbursing customers who pay to test products themselves (Janoshik/Amino Asylum named as examples), refunds if purity fails - a real but different mechanism to a CoA library, scored as no disclosed CoA practice. Sells NMN/marine-collagen (oral) alongside injectables.
Research peptide retailer
Names Janoshik Analytical and links a dedicated /certificates page, but each CoA is served as a static per-product PNG image filed by SKU (not batch number), not the 'downloadable PDF certificates' the homepage claims, with no QR code or link to janoshik.com's own verification portal.
Best for per-batch lab reports across a broad peptide range
Research peptide retailer · BPC-157 from £16.85
UK research peptide supplier trading as New Wave Solutions Limited, listing 99%+ HPLC purity and per-batch lab reports across repair, GH-secretagogue and longevity ranges. Research-use-only framing runs throughout the site.
Research peptide retailer
'COA's' appears as an unlinked label in the site header but no actual certificate, document, or page exists anywhere (dedicated CoA and quality-assurance URLs both 404); RUO disclaimer is applied per-product.
Research peptide retailer
CoAs 'requested at checkout or contact page', tested by own 'compounding lab' not a named independent lab; no UK company registration shown; self-contradictory founding claim on about page.
Research peptide retailer
Real active UK company (16181281) and clear RUO disclaimer, but CoA hedged 'where available' with no named lab, and sells 13 oral capsule products with benefit language (muscle recovery, gut health, brain health) contradicting research-only/non-oral framing.
Research peptide retailer
Publicly viewable /lab-reports table shows real dated batch numbers for two products (most others 'pending release'), but the PDF certificate links are non-functional placeholders and the /verify batch tool checks NXT Gen's own site rather than a named third-party lab's own portal.
Research peptide retailer
Markets COA Verified and a Lab Certificate Lookup tool, but the production JS bundle reveals the actual UI renders a literal placeholder reading Lab certificate document to be placed here, no real lab named.
Best for an established supplier with broad catalogue, batch COAs and bespoke compounding
Research peptide retailer
Established London research-peptide supplier (formerly Oxford Peptides, RFR Global Ltd) with >=99% HPLC batch COAs and strict RUO framing.
Research peptide retailer
No CoA, lab-report page, or named lab found anywhere, only a vague 'thorough testing' claim, while the shop sells a capsule-form product (GHK-Cu Capsules) alongside a blanket research-only disclaimer on every listing.
Research peptide retailer
Per-batch dated CoA PDFs openly published in a public COA Vault with no gate, but lab never named, no QR/lookup verifying against any lab's own portal.
Research peptide retailer
Per-batch CoAs from named third-party lab Liquilabs s.r.o. stated to be published and QR-verifiable via the lab's own portal, disciplined research-only product copy, no capsule products.
Research peptide retailer
Homepage FAQ claims every batch is covered by a CoA, but no CoA link, document, or named lab appears anywhere on the shop or product pages, a claimed practice with no visible instance.
Research peptide retailer
Dedicated certificates page openly lists per-product CoA headers with no login wall, but names no specific lab and shows no batch dates or QR verification; product page combines RUO disclaimer with explicit benefit claims.
Buyers wanting a UK-billed GLP-Semaglutide research range, with an on-site reconstitution calculator and a clean shop UI.
Research peptide retailer · GLP-Semaglutide £80 to £220 per vial
UK research peptide retailer (Peptagenix UK Ltd, October 2024). Lead category is GLP-1 / Semaglutide. Inline reconstitution dose calculator on homepage. Mail-forwarding Covent Garden address. Athlete-facing framing alongside scientists and labs.
Research peptide retailer
No CoA, batch number, or lab report disclosed anywhere, though every product page carries its own research-only disclaimer.
Research peptide retailer
CoA page explains a batch may have a certificate if available but customers must email to request it, on-request model with no lab named and no visible certificate instance.
Researchers wanting GLP-1-adjacent compounds (Tirzepatide, Retatrutide, Mazdutide) inside a broader peptide catalogue, plus an adjacent biomarker blood-test service.
Research peptide retailer · BPC-157 £17.99, Tirzepatide from £42.99
Anti-counterfeit-framed UK research peptide retailer leaning hard on Fat Loss as primary nav category (Tirzepatide, Retatrutide, Mazdutide) alongside the broader catalogue. Above 99 percent HPLC and mass-spec verified purity claim. CoA gated by email request. Long-form pillar guides with named author byline and PubMed citations.
Research peptide retailer
RUO disclaimer present but no named lab, no downloadable/batch CoA; no UK company number disclosed; BPC-157 listing uses therapeutic language ('regenerative effects','promotes healing') despite RUO framing.
Research peptide retailer
Marketing copy states COA included with each order and testing by unnamed independent UK laboratories, but no CoA documents, lab name, or verification link are published anywhere; the footer Lab Testing link is a dead placeholder.
Research peptide retailer
Per-batch lot-specific CoAs from an ISO 17025-accredited lab are directly downloadable PDFs linked openly with no login gate, but no QR/lab-portal cross-verification and catalog limited to two SKUs.
Research peptide retailer
CoAs are freely downloadable PDFs, lab-tested by Janoshik with a QR code verifiable at janoshik.com/verify/, but the certificate's own Batch field is left blank so it reads as one representative test per product rather than a true per-batch document.
Research peptide retailer
Dedicated Certificates of Analysis page is a policy statement, not a document repository, with zero actual certificate links and no lab ever named.
Research peptide retailer
No CoA/lab-testing/quality page exists anywhere in site nav. Generic 'Research use only' line on homepage but no company registration, payment or founding details published. CH shows entity (17044088) incorporated only 19 Feb 2026.
Research peptide retailer
Static non-downloadable image thumbnails of certs, no named lab, no batch numbers, no QR verification. Registered address is mass virtual-office (Great Portland Street) shared by thousands; no CH entity confidently matched.
Research peptide retailer
Dedicated CoA page is educational only, states customers can ask for available COA documents before ordering, no lab named, no RUO disclaimer found.
Best for classic peptides catalogue
Research peptide retailer · Per peptide, varies
Long-trading UK research peptide retailer (2012). Heavy on classic compounds (BPC-157, TB-500, GHK-Cu, CJC-1295, Ipamorelin, MOTS-c). No GLP-1, no cosmetic line. CoA gated via on-site contact form (request lab report per product). Reconstitution calculator on-site.
Research peptide retailer
Per-batch, dated CoAs are freely downloadable PDFs with a batch-number lookup tool, but they are hosted on the retailer's own storage rather than linking to the named lab's own portal, so third-party verification cannot be independently confirmed.
Research peptide retailer
peptiology.co.uk redirects to peptiology.com, confirmed same operator, per-batch CoA system but testing is by Peptiology itself (Dubai), effectively in-house.
Research peptide retailer
Per-batch CoAs verified via batch number lookup directly on janoshik.com, open access, RUO disclaimer in footer not on product listings.
Research peptide retailer
Per-batch CoAs with lot numbers sit behind a simple age/researcher self-certification click-through, naming Elementrix Laboratories, though whether the lookup resolves to the lab's own portal could not be confirmed.
Research peptide retailer
Per-batch Janoshik test reports with QR code and verify-at-janoshik.com key are freely viewable via a View CoA modal, but served as a PNG image rather than a linked document.
Research peptide retailer
CoAs are freely downloadable per-product PDFs signed by Janoshik with a QR/key verifiable at janoshik.com/verify, but the certificate's own Batch field reads Unknown and product pages carry explicit benefit claims with no research-only disclaimer of their own.
Research peptide retailer
Open per-batch CoAs hosted directly on Janoshik's own verification platform with unique batch codes; clear RUO disclaimers. But sells oral tablet/capsule formats despite RUO framing, and no UK company registration found despite UK-styled storefront.
Research peptide retailer
States '100% batches third-party tested' and 'COA included' but the certificate is only physically supplied with the order, no named lab, no dedicated online CoA page, and no QR/batch-lookup verification.
Research peptide retailer
Dedicated /pages/coas names no lab, vague 'made available for researchers to review' framing, no working download links actually rendering. Operating company renamed 'Platinum Peptides Ltd' -> 'Platinum Science Ltd' in April 2026 while storefront still trades as 'Platinum Peptides'. Registered at 124 City Road EC1V 2NX - SAME mass virtual-office address as Genetic Research in this batch.
Research peptide retailer
Dedicated CoA/Lab Reports page with batch-number filter claims every batch published, but currently shows 'No COA files available yet'. No lab named. Same-named CH entity (17201282) exists but wrong SIC code, not treated as confirmed match.
Research peptide retailer
Sells peptides/SARMs/injectable steroids alongside oral capsules; names 'Analiza Labs' but no downloadable/per-batch CoA, only on-request; registered at mass virtual office; MK-677 listing makes borderline benefit claim.
Research peptide retailer
CoAs only via email after purchase, unnamed lab, never shown with batch number/QR. Product copy (BPC-157 'accelerated blood flow recovery') edges into benefit-implying language. Bank-transfer-only checkout.
Research peptide retailer
The /certificate/ page shows only generic product-image mockups with no batch numbers, dates, or named lab, and this retailer sells oral capsule SKUs (NMN, 5-Amino-1MQ, SLU-PP332).
Research peptide retailer
Every product page carries a Self Verify widget linking to the real janoshik.com/verify/ portal, but Task Number and Unique Key fields are blank on every product checked, batch documentation described as available on request.
Research peptide retailer
CoAs vaguely 'on request', no named lab, advertised QR 'Batch Check' portal not confirmed functional; no matching UK company found; Glow Stack listing language edges toward beauty-benefit claims despite RUO.
Research peptide retailer
Per-batch dated CoAs with batch numbers freely viewable on a testing page and repeated on each product page, each with a direct verify link into verify.janoshik.com's own portal.
Research peptide retailer
UK storefront (GBP, UK shipping) but own T&Cs say governed by Nevis law; no matching UK CH entity; Shelton Street Covent Garden address is known mass company-formation/virtual-office address; CoAs are undated unbatched JPGs, no named lab.
Best for openly published per-batch lab documentation, with an ungated lab analysis library covering 70+ products
Research peptide retailer · Per peptide, varies
UK research peptide retailer trading as PFP Research Limited, with a public batch-numbered lab analysis library covering 70+ products and stated UK service hours six days a week.
Research peptide retailer
'COA Included/Batch-matched every order' badge and per-order batch codes but never a downloadable CoA/image/QR. No lab named beyond generic HPLC/MS claims. Operates from mass company-formation address (Shelton Street) shared by 1000+ firms, no confirmed CH match.
Research peptide retailer
Every order ships with a physical COA card verified via a one-time code on the retailer's own verify page, no third-party lab named.
Best for per-batch CoA library
Research peptide retailer · BPC-157 5mg £13.99, TB-500 5mg £36
Long-established UK research peptide supplier. 12 years trading, 15,000+ customers. Operates a public CoA subdomain (coa.purepeptidesuk.com) with downloadable per-batch certificates linked from every PDP. Dual-tier purity (Standard vs Premium with endotoxin LAL + heavy-metal testing on Premium).
Research peptide retailer
Per-batch CoAs but only 'on request' via generic contact form, no download/QR/named lab. No CH number, address or founding year disclosed despite thorough in-vitro disclaimers and live Trustpilot.
Research peptide retailer
Registered at confirmed virtual-office/mail-forwarding address (Wood Street E17). 'COAs' nav link and Trustpilot mentions of 'full COAs' but no actual access mechanism found. Retatrutide page carries RUO disclaimer directly alongside explicit benefit claims ('Faster, more dramatic fat loss', weight-loss %, 'wound healing').
Research peptide retailer
No CoA, lab-testing page, or named third-party lab found anywhere on the site; only a generic sitewide RUO entry-gate disclaimer, no capsule/oral products found among the SKUs listed.
Research peptide retailer
Product pages say CoAs are available upon request with no downloadable document found, About page attributes testing to their own facility rather than an external lab.
Best for public per-batch third-party test reports you can view before ordering
Research peptide retailer · Per peptide, varies
UK-based research peptide retailer trading as Midshire Labs Ltd, with a recovery and longevity focused range, 99%+ purity claims and a public bank of per-batch third-party test reports. All products are framed as research use only.
Research peptide retailer
Test reports openly published, no login, each with unique verification key + QR linking to real janoshik.com/verify portal. Clean RUO disclaimer, no benefit claims. Checkout is bank-transfer/Pay-by-Bank only, no card.
Research peptide retailer
Claims batch-specific CoAs at 99%+ HPLC purity but every mention is gated behind available-on-request language with no lab named, no visible certificate; product pages carry RUO disclaimers alongside explicit therapeutic benefit claims.
Research peptide retailer
Open batch-list CoA page naming Janoshik Analytical and Analiza Bialek as independent labs, View COA opens an actual report screenshot with QR code checkable at janoshik.com/verify, delivered as an image not a native PDF.
Research peptide retailer
Per-batch purity cards under vague European labs branding, no lab named, most Available on Request, one Download CoA PDF link resolves to a blank PDF; site claims products approved for human therapeutic use, contradicting RUO framing entirely.
Research peptide retailer
Searchable CoA table lists batch IDs, test dates and purity with View Certificate links for direct cross-check at janoshik.com/verify.
Research peptide retailer
Each batch has its own COA that must be requested by email, naming only a generic independent lab, homepage separately brands the product a weight-loss treatment.
Research peptide retailer
No CoA, lab-testing evidence, or third-party verification practice appears anywhere on the site, despite product pages carrying an RUO disclaimer alongside direct tissue-healing/anti-inflammatory claims.
Research peptide retailer
Claims cGMP/ISO9001 in-house HPLC testing but publishes no actual CoA, names no third-party lab, no CoA page in navigation.
Research peptide retailer
Trades via Wellcore Innovations Ltd (CH 14504852, formerly 'Luxe Tanning Ltd' renamed Aug 2024). CoA PDFs openly downloadable but product-level not batch-specific, no lab named. Site's own contact page cites a DIFFERENT company number (16405928) that is a dormant shell at the same address, not the actual trading entity. Only contact channels: WhatsApp + proton.me email.
Research peptide retailer
Own domain 301-redirects to sculptgb.co.uk, which claims 'thorough third-party testing' but publishes no actual CoA document/image/request process, no lab named, no company registration or address disclosed, no Trustpilot found.
Research peptide retailer
Trades via Research Stack Ltd (CH 16843184) at Shelton Street Covent Garden, a well-known high-volume company-formation/virtual-office address. Lab Reports page is strongest of batch: real batch/lot numbers, mostly-working Janoshik QR verify links, second named lab too - but 3 older reports have broken QR codes, some newer reports password-protected. Trustpilot claim (4+ stars) could not be confirmed, page returned 403.
Research peptide retailer
No CoA, lab report, or named third-party lab found anywhere on the site despite a consistently-applied per-product RUO disclaimer; product descriptions use benefit-adjacent language ('weight-management outcomes', 'collagen production, skin renewal').
Research peptide retailer
Redirects to eastsussexpeptides.co.uk; no CoA, lab name, or testing documentation found anywhere on the site, and the RUO disclaimer is buried mid-page in an 'Our Commitment' section rather than on individual product listings.
Research peptide retailer
FAQ states CoAs available upon request with no visible instance or named lab, product bundles marketed under consumer-benefit names despite an RUO disclaimer in Terms of Service.
Research peptide retailer
Site largely unfinished build ('Pardon our dust'), only generic '>99% HPLC-tested' claim, no CoA, no named lab, no company registration anywhere; own Trustpilot reviews report company unable to provide batch info when asked.
Research peptide retailer
Genuine batch-ID CoA lookup tool, no login/email gate, real active CH registration (17107501) - but incorporated only 21 Mar 2026 (under 5 months old). No specific lab named despite claiming ISO/IEC 17025 accreditation.
Research peptide retailer
Dedicated lab-reports page freely lists batch ID, date and purity per product, open no login, but no named third-party lab and no downloadable certificate file found.
Research peptide retailer
No CoA, lab claim, lab name, or research-use disclaimer appears anywhere; catalogue mixes misspelled peptides with unrelated anabolic steroids under an Oral category.
Research peptide retailer
Confirmed wholesale reseller carrying 13 third-party label brands, CoA practice inconsistent, some as gallery images, others none.
Best for established trading history with per-product CoAs and clear research-only framing
Research peptide retailer · £9.99 to £69.99
Established UK research-peptide retailer (since 2022) with HPLC >=99%, a CoA page, clear RUO framing and a registered UK entity.
Researchers who weight UKAS lab accreditation specifically and want the loudest external-verification claim in the segment.
Research peptide retailer · Per peptide, varies
UK research peptide retailer leaning on UKAS-verified HPLC as the sole-in-UK trust claim. Narrower catalogue than UKPeptides or Pure Peptides UK but the lab-verification angle is the loudest in the segment.
Research peptide retailer
Claims generic HPLC/MS-UPLC batch testing and GMP manufacturing but no CoA document/batch number/QR anywhere. No company registration or address, no email contact (only login-gated 'secure message'). RUO disclaimer only on terms page. Product copy leans into benefit framing (PT-141 tied to sexual function, NAD+ 'MUST HAVE').
Research peptide retailer
Site states batches are independently tested with certificates available on request, but no lab is named and no CoA document or page is published anywhere.
Research peptide retailer
Site makes a single passing claim of '3rd party testing' on the homepage but has no CoA document, no named lab, and no dedicated testing/quality page anywhere to substantiate it.
Research peptide retailer
Each product page links an openly downloadable dated per-batch CoA PDF naming a real lab, self-hosted on the retailer's own domain rather than verifiable on the lab's own portal.
Research peptide retailer
No CoA, lab-testing, or quality-verification page exists anywhere, no third-party lab is named, only a general research-use homepage claim.
Research peptide retailer
No CoA/lab-testing content exists anywhere on the site; only a homepage-level research-purposes-only banner, not repeated on individual product pages.
Best for bioregulators + Russian peptides
Research peptide retailer · BPC-157 5mg from £13.00 at 100+
14 years trading from Middlesbrough. The deepest classic-peptide plus Russian-bioregulator catalogue in the UK (Bronchogen, Cartalax, Pinealon, Thymalin, Vilon, Crystagen). Open volume-tier pricing on every PDP with rotating monthly site-wide promo. Publishes a contrarian manifesto rejecting third-party CoAs as forgery-prone in favour of in-house LCMS/HPLC (commissioned 2026 to 2027).
Research peptide retailer
Separate WordPress build carrying the same UK Peptides branding as ukpeptides.com; a testimonial states COA provided with every order but no lab is named and no CoA page or QR verification exists.
Research peptide retailer
Homepage claims certificates of analysis available for all products and independent HPLC analysis on every batch but names no lab and links to no actual CoA document; site became bot-protected on repeat fetch attempts.
Research peptide retailer
Batch-specific PDF certificates from two named US labs (MZ Bio Labs, Colmaric Analyticals) are openly linked from a dedicated purity-certificates page and individual product pages, but there is no QR/lab-portal cross-check and product pages carry explicit benefit claims (e.g. Enhanced Muscle Growth, Fat Loss) despite research-only wording.
Research peptide retailer
No CoA or third-party lab language appears anywhere; product page pairs a research-use disclaimer with consumer-style benefit copy; MK-677, KPV and Tesofensine sold as tablets.
Research peptide retailer
Product pages promise a CoA 'available on our Lab Reports page' citing unnamed 'accredited laboratories', but that page 404s and no actual certificate instance could be found, while descriptions attribute tissue-repair/regeneration effects to the compound.
Research peptide retailer
Names real third-party lab (Janoshik), 'each order includes a Certificate of Analysis' - but only sent with order, not downloadable/QR-verifiable before purchase. No company registration published. Contact address is a PO-box-style mailbox unit (Poole BH15 9EL), not trading premises.
Research peptide retailer
Per-batch, dated CoAs are freely viewable with product pages linking directly to janoshik.com test-result pages, though certificate images are also mirrored on-site; verifiedpeptides.co.uk is a separate placeholder, not the live retailer.
Research peptide retailer
Registered office matches real active company (Vionex Ltd, CH 16691739) though trading name is a variant not exact CH match. CoA Library shows batch/lot+purity as on-page entries not PDFs, no lab named, no QR. 5-Amino-1MQ page carries RUO disclaimer directly alongside animal-study benefit language ('reversed diet-induced obesity in mice') next to buy button.
Research peptide retailer
Claims HPLC-verified purity and a not-for-human-consumption disclaimer, but discloses no CoA practice, no lab name, no page or process to view/request a certificate.
Research peptide retailer
Claims 'lab tested' and founding in 2012, but no CoA process, lab name, or Companies House match found anywhere on site.
Research peptide retailer
Batch CoAs sent with order, strong RUO disclaimers, but testing only 'in-house', no named lab, no QR CoA, no CH match found.
Researchers wanting named-stack bundles (Wolverine, KLOW, Glow) and CoAs that can be QR-verified to a named third-party lab.
Research peptide retailer · Wolverine Stack £29.99, BPC-157 single from £14.99
Nottingham-based research peptide retailer (Bio Research Ltd, since 2024). Bundles and stacks are the hero SKU (Wolverine BPC-157 + TB-500, Tesamorelin + Ipamorelin 3:1, KLOW, Glow). Janoshik third-party CoAs published per batch with QR-code verification. 10-vial bulk packs alongside singles. Wholesale tier above 11 vials.
Research peptide retailer
CoAs published openly per batch, but the UK company (15301118) was dissolved 24 Sep 2024 while the shop keeps trading; on-site 'business number' does not match any valid CH format.
Research peptide retailer
Domain redirects to rebrand 'P4U Wellbeing Ltd' (CH 17051612, itself under active strike-off proposal) sharing exact registered address of original dissolved Peptides4U Ltd (CH 16727596, dissolved 27 Jan 2026) - undisclosed dissolved-entity-continuity. Otherwise clean per-batch Janoshik CoAs, no company number/phone/address disclosed on-site.
Not recommended at current trust profile. Listed for reference and as a worked example of corporate-dissolution risk in the segment.
Research peptide retailer (operator status unclear) · Peptide vials £11.95 to £39.95
Narrow classic research-peptide catalogue (~19 SKUs). UK Research Peptides Ltd (11246963) was dissolved 2021-03-30 but the site continues to trade, current operator unclear from public records.
CoA badges indicate certificate of analysis transparency on a green / amber / red scale. See our full UK retailers guide for the detailed comparison.
Other UK research-peptide retailers we are still assessing
These are other UK-shipping, research-use-only retailers we are aware of but have not yet scored. We list them in the interest of transparency. Being named here is not an endorsement and not a warning. It means our assessment is incomplete: not being able to check a retailer is a different fact from failing a check, and these retailers are excluded from scoring rather than marked red. Full detail on how scoring works: methodology. We do not list retailers that market peptides for human use or make health claims, regardless of data.
Outbound links are unverified and carry no affiliate relationship. Research use only. Not for human or animal consumption.
UA · Not enough data to vet 36 retailers Show list +
UK research-peptide retailers where we could not yet verify enough to score: typically no identifiable UK trading entity, or no published HPLC purity figure or certificate-of-analysis policy. UA is "unavailable," not a grade: it doesn't sit on the scored A+ to F scale, so absence of data is never shown as if it were a bad score.
UA Apex Peptide
Resolves but is a HugeDomains for-sale parking page, no retailer content of any kind.
Domain would not resolve via automated fetch on any attempt despite search-engine snippets showing an actively indexed storefront claiming per-batch QR-verifiable CoAs, could not independently verify.
Domain refused connection on every attempt despite appearing in search results as an actively indexed lab-tested peptides storefront, could not independently verify.
Domain resolves in DNS but refuses the TLS connection outright on repeated attempts.
UA CMSR Labs
Entire site sits behind a security-clearance access-code wall, no shop, product, or CoA content reachable without credentials.
UA D&L Peptides
Resolves to live infrastructure but every path returns HTTP 503 temporarily unavailable with noindex, no content retrievable.
Companies House 16977255
Resolves but serves only a cPanel hosting-suspended lander with no retailer content.
Companies House 16917118 Trustpilot
Domain does not resolve, no A/NS records, confirmed via repeated attempts.
GoDaddy Website Builder default page marked Launching Soon, no product/lab/CoA content.
Companies House 17212658
Resolves to WordPress.com but returns Active domain connection for this domain not found on every request.
Cloudflare nameservers assigned but no A/AAAA/CNAME record configured, no site reachable.
Companies House 16990556 Trustpilot
HTTPS fails TLS handshake, plain-HTTP fallback loads an IONOS domain-parking lander, no real retailer content exists.
Live WordPress password-protected login screen gates all content, nothing assessable.
Companies House 16842079
All fetch attempts were actively refused despite the domain resolving and being indexed by Google.
301-redirects permanently to midshirelabs.co.uk with no independent storefront, absorbed into Midshire Labs.
retatrutiduk.co.uk fails to resolve; related brand synedica.co.uk resolves but sits entirely behind a password-protected login page, no content assessable on either.
Points to Cloudflare/Shopify infra but serves an expired TLS certificate and 403s on every request, underlying Shopify store disconnected.
UA RK Peptides
Resolves to a Webador site builder page marked unpublished/offline, no storefront exists.
Companies House 16985172
Domain would not resolve via automated fetch despite search-engine snippets showing an active storefront claiming testing by two approved labs, could not independently verify.
Domain failed DNS resolution on repeated attempts despite press evidence of an active operator.
UA Steroids-UK (peptides range)
All fetch attempts were blocked at the network/TLS layer, no page content could be directly observed.
Homepage JS-redirects to a GoDaddy domain-parking lander with no retailer content whatsoever.
Companies House 17293926
UA Tide Labs UK
Confirmed imposter: registered 07 Jul 2026, eleven months after the genuine tidelabs.co.uk (Shaun James ANNIS, TL Research Ltd 16935616), on a different platform (WordPress vs Shopify) and host, with no shared analytics ID or any other marker linking it to the real Tide Labs.
Every fetch attempt returned only a bot-verification challenge screen with no underlying content, nothing about CoA practices could be assessed.
UA UK Peptology
Returns a genuine Apache 403 Forbidden on every path tested, no content retrievable.
Bare Cloudflare 403 with no content, HTTP returns Cloudflare error 1001 DNS resolution failure at origin.
UA · Too new to vet yet 0 retailers Show list +
Registered UK companies with the right research-use framing, but under 12 months of trading. We re-review each at the 12-month mark before scoring. UA is "unavailable," not a grade: a company being young is never shown as if it were a bad score.
GLP-1 clinics and pharmacies
GLP-1 weight-management medications are prescription-only medicines in the UK. Access requires a prescriber assessment. The routes below split into two lanes: high-touch clinics that include coaching and structured programmes, and low-touch online pharmacies offering pharmacy-direct prescribing at lower ongoing cost.
Your prescriber decides which medication, if any, is appropriate for you. PeptideClear does not make medication recommendations.
Clinics
Programme-style clinics with coaching, dietitian access, and structured check-ins alongside the prescriber relationship. Higher monthly cost reflects the support layer.
Best for end-to-end weight programme
GLP-1 clinic (high-touch) · £195 to £295/mo
Women's-focused weight management programme. Strong on menopause-aware care and women's metabolic dynamics.
Best for men's health crossover
GLP-1 clinic (high-touch) · £199 to £279/mo
Men's-focused health clinic. GLP-1 alongside TRT, hair loss, sexual health. Strong if you want bundled men's wellness rather than isolated weight loss.
Best for video + bloods consultation
GLP-1 clinic (high-touch) · £199 to £299/mo
App-led men's and women's health clinic. Coach + monthly check-in + bloods. Published referral programme of £100 each side per converted signup.
Best for cautious first-time GLP-1 users wanting blood test + low-dose programme
GLP-1 clinic (high-touch, low-dose programme) · From the low-dose programme starting tier (see clinic for current pricing)
UK GLP-1 clinic with a 'low-dose programme' positioning, blood-test entry product, and clinical-study messaging. GMC-registered prescribers in-house. Targets cautious first-time users.
Best for remote Wegovy or Mounjaro access at mid-market pricing
GLP-1 clinic (online prescriber-led) · £150 to £300/mo (Mounjaro, dose-dependent)
UK online clinic prescribing Wegovy (semaglutide) and Mounjaro (tirzepatide) for weight loss. Remote prescriber-led model with a supporting weight-loss content blog.
Best for women-focused weight management
GLP-1 clinic (high-touch) · £189 to £329/mo
Programme-style weight management clinic with strong emphasis on aftercare and maintenance. Was Second Nature historically.
UK online pharmacies
GPhC-regulated online pharmacies offering prescriber consultations and direct dispensing. Lower cost than the clinic tier; less programme overlay.
Users who want supermarket-brand trust with routine GLP-1 prescribing.
GLP-1 pharmacy (low-touch) · From £189/mo
Asda Online Doctor is Asda's regulated online pharmacy service for weight-loss GLP-1 prescribing. A digital questionnaire is reviewed by a GMC-registered prescriber and, if appropriate, the medication is dispensed and delivered UK-wide. It is GPhC-registered and Asda-owned, with headline pricing from £189 per month. Supermarket-brand pharmacy distribution.
Users who want the Boots brand for trust and the option to collect in-store.
GLP-1 pharmacy (low-touch) · From £199/mo
Boots online doctor service with weight-loss GLP-1 prescribing alongside the high-street brand.
Users who want a long-established UK pharmacy and lower ongoing pricing than a clinic.
GLP-1 pharmacy (low-touch) · From £179/mo
One of the largest UK online pharmacies, with NHS infrastructure and full GLP-1 stocking. Lower-priced ongoing scripts than clinics.
Users wanting fast delivery, lowest-friction prescriber consult, and pharmacy-direct pricing.
GLP-1 pharmacy (low-touch) · From £159/mo
Digital pharmacy with rapid online prescriber consult and same-day delivery in central London. UK-wide tracked dispatch for others.
Users wanting straightforward pharmacy-direct fulfilment without programme overlay.
GLP-1 pharmacy (low-touch) · From £169/mo
UK online pharmacy with broad weight-loss stocking and routine pharmacy-direct pricing on Mounjaro and Wegovy.
See our clinics directory and pharmacies directory for detailed side-by-side comparisons.
How outbound links work on PeptideClear
- · You click a retailer link from anywhere on our site.
- · The link is an ordinary, untracked link. No tracking cookie, no referral code.
- · If you complete a purchase or consultation, we receive nothing.
- · Retailer inclusion is governed by our methodology, not commercial terms.
Full disclosure at how we are funded.