{"schema_version":"2026-05-25","source":"https://peptideclear.co.uk/coa-trust-index/","license":"https://creativecommons.org/licenses/by/4.0/","disclaimer":"Factual catalogue, vendor and Certificate-of-Analysis verification data only. Not medical advice and not a recommendation to use any substance.","count":15,"sellers":[{"slug":"my-peptides","name":"my-peptides","category":"research-peptide-retailer","category_label":"Research peptide retailer","homepage":"https://my-peptides.co.uk","profile_url":"https://peptideclear.co.uk/retailer/my-peptides/","summary":"UK research peptide retailer with HPLC-verified purity claims and CoAs included on orders. Operates under research-use-only framing.","founded_year":null,"regulated":"Trading under MY PEPTIDES Ltd, UK warehouse","companies_house":null,"coa":{"per_batch":true,"gating":"email","qr_verifiable":false,"lab_partner":"HPLC verified (in-house claim)","url":null,"trust_index":{"tier":"red","score":1,"label":"CoA: weak / closed","reasons":["Per-batch CoA published","CoA gated behind email request"],"flags":[]}},"last_reviewed":"2026-05-10"},{"slug":"pure-peptides-uk","name":"Pure Peptides UK","category":"research-peptide-retailer","category_label":"Research peptide retailer","homepage":"https://purepeptidesuk.com","profile_url":"https://peptideclear.co.uk/retailer/pure-peptides-uk/","summary":"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).","founded_year":2014,"regulated":"UK trading entity, Pure Progress Ltd","companies_house":"10512948","coa":{"per_batch":true,"gating":"open","qr_verifiable":false,"lab_partner":"ISO9001-certified UK partner lab","url":"https://coa.purepeptidesuk.com","trust_index":{"tier":"green","score":6,"label":"CoA: strong","reasons":["Per-batch CoA published","CoA open without gating","Third-party lab named: ISO9001-certified UK partner lab","Dedicated CoA URL: https://coa.purepeptidesuk.com"],"flags":[]}},"last_reviewed":"2026-05-18"},{"slug":"direct-sarms","name":"Direct Sarms","category":"research-peptide-retailer","category_label":"Research peptide retailer (peptides + SARMs)","homepage":"https://direct-sarms.com","profile_url":"https://peptideclear.co.uk/retailer/direct-sarms/","summary":"UK-shipping retailer with research peptides alongside SARMs. Crypto payment option for EU customers in addition to cards.","founded_year":null,"regulated":"UK + EU shipping operator","companies_house":null,"coa":{"per_batch":null,"gating":"unverified","qr_verifiable":false,"lab_partner":null,"url":null,"trust_index":{"tier":"red","score":-1,"label":"CoA: weak / closed","reasons":["CoA practice unverified by UKMet team"],"flags":[]}},"last_reviewed":"2026-05-10"},{"slug":"uk-peptides","name":"UK Peptides","category":"research-peptide-retailer","category_label":"Research peptide retailer","homepage":"https://www.uk-peptides.com","profile_url":"https://peptideclear.co.uk/retailer/uk-peptides/","summary":"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).","founded_year":2012,"regulated":"UK company 08033431, research-chemical supplier (not pharmacy)","companies_house":"08033431","coa":{"per_batch":true,"gating":"manifesto-against","qr_verifiable":false,"lab_partner":"In-house LCMS, HPLC (commissioning 2026 to 2027)","url":null,"trust_index":{"tier":"red","score":0,"label":"CoA: weak / closed","reasons":["Per-batch CoA published","No publicly identifiable third-party CoA testing at time of review"],"flags":[]}},"last_reviewed":"2026-05-18"},{"slug":"peptide-labs-uk","name":"Peptide Labs UK","category":"research-peptide-retailer","category_label":"Research peptide retailer","homepage":"https://peptideslabuk.com","profile_url":"https://peptideclear.co.uk/retailer/peptide-labs-uk/","summary":"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.","founded_year":2023,"regulated":"UK research-chemical supplier (not pharmacy)","companies_house":null,"coa":{"per_batch":true,"gating":"email","qr_verifiable":false,"lab_partner":"Third-party HPLC and mass-spec (lab unnamed)","url":null,"trust_index":{"tier":"amber","score":2,"label":"CoA: partial","reasons":["Per-batch CoA published","Third-party lab named: Third-party HPLC and mass-spec (lab unnamed)","CoA gated behind email request"],"flags":[]}},"last_reviewed":"2026-05-18"},{"slug":"xl-peptides","name":"XL Peptides","category":"research-peptide-retailer","category_label":"Research peptide retailer","homepage":"https://xlpeptides.com","profile_url":"https://peptideclear.co.uk/retailer/xl-peptides/","summary":"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.","founded_year":2024,"regulated":"Bio Research Ltd 15464334, research-chemical supplier","companies_house":"15464334","coa":{"per_batch":true,"gating":"open","qr_verifiable":true,"lab_partner":"Janoshik (third-party, QR-verifiable)","url":null,"trust_index":{"tier":"green","score":7,"label":"CoA: strong","reasons":["Per-batch CoA published","CoA open without gating","QR-verifiable to third-party lab","Third-party lab named: Janoshik (third-party, QR-verifiable)"],"flags":[]}},"last_reviewed":"2026-05-18"},{"slug":"dr-peptides","name":"Dr Peptides","category":"research-peptide-retailer","category_label":"Research peptide retailer","homepage":"https://www.drpeptides.co.uk","profile_url":"https://peptideclear.co.uk/retailer/dr-peptides/","summary":"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.","founded_year":2025,"regulated":"Dr Peptides Ltd 16656576, research-chemical supplier","companies_house":"16656576","coa":{"per_batch":true,"gating":"image","qr_verifiable":false,"lab_partner":"Third-party (lab unnamed, photographed in listings)","url":null,"trust_index":{"tier":"amber","score":3,"label":"CoA: partial","reasons":["Per-batch CoA published","Third-party lab named: Third-party (lab unnamed, photographed in listings)","CoA photographed in product listings (not downloadable)"],"flags":[]}},"last_reviewed":"2026-05-18"},{"slug":"tide-labs","name":"Tide Labs","category":"research-peptide-retailer","category_label":"Research peptide retailer","homepage":"https://tidelabs.co.uk","profile_url":"https://peptideclear.co.uk/retailer/tide-labs/","summary":"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.","founded_year":2023,"regulated":"UK research-chemical supplier","companies_house":null,"coa":{"per_batch":true,"gating":"open","qr_verifiable":false,"lab_partner":"UKAS-verified HPLC (claimed sole-in-UK)","url":null,"trust_index":{"tier":"amber","score":4,"label":"CoA: partial","reasons":["Per-batch CoA published","CoA open without gating"],"flags":[]}},"last_reviewed":"2026-05-18"},{"slug":"imperial-peptides","name":"Imperial Peptides","category":"research-peptide-retailer","category_label":"Research peptide retailer","homepage":"https://www.imperialpeptides.co.uk","profile_url":"https://peptideclear.co.uk/retailer/imperial-peptides/","summary":"UK research peptide retailer with third-party HPLC plus transparent batch documentation. Plays the credibility lane alongside Pure Peptides UK and Tide Labs.","founded_year":2022,"regulated":"UK research-chemical supplier","companies_house":null,"coa":{"per_batch":true,"gating":"open","qr_verifiable":false,"lab_partner":"Third-party HPLC","url":null,"trust_index":{"tier":"green","score":5,"label":"CoA: strong","reasons":["Per-batch CoA published","CoA open without gating","Third-party lab named: Third-party HPLC"],"flags":[]}},"last_reviewed":"2026-05-18"},{"slug":"peptides-uk","name":"Peptides UK","category":"research-peptide-retailer","category_label":"Research peptide retailer","homepage":"https://peptidesuk.com","profile_url":"https://peptideclear.co.uk/retailer/peptides-uk/","summary":"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.","founded_year":2012,"regulated":"UK research-chemical supplier (not pharmacy)","companies_house":null,"coa":{"per_batch":true,"gating":"form","qr_verifiable":false,"lab_partner":"cGMP and ISO9001 facility (unnamed)","url":"https://peptidesuk.com/lab-reports/","trust_index":{"tier":"amber","score":4,"label":"CoA: partial","reasons":["Per-batch CoA published","Third-party lab named: cGMP and ISO9001 facility (unnamed)","Dedicated CoA URL: https://peptidesuk.com/lab-reports/","CoA gated behind on-site form"],"flags":["Registered office is a known mail-forwarding address"]}},"last_reviewed":"2026-05-18"},{"slug":"bioplex-peptides","name":"BioPlex Peptides","category":"research-peptide-retailer","category_label":"Research peptide retailer (peptides + SARMs)","homepage":"https://bioplexpeptides.co.uk","profile_url":"https://peptideclear.co.uk/retailer/bioplex-peptides/","summary":"UK research peptide retailer + SARMs + Peptide Sets (dual-research blends). Founded (claimed) 2012, but trading entity Prime-Physique Ltd was incorporated August 2025. Bristol University biochemistry founders named (Charles Baron, Harry Watts). Weekly rotating featured-offers panel, Judge.me reviews widget, COAs delivered as content not gated.","founded_year":2025,"regulated":"Prime-Physique Ltd 16653527, research-chemical supplier","companies_house":"16653527","coa":{"per_batch":true,"gating":"image","qr_verifiable":false,"lab_partner":"COAs claimed (lab unnamed)","url":null,"trust_index":{"tier":"amber","score":2,"label":"CoA: partial","reasons":["Per-batch CoA published","CoA photographed in product listings (not downloadable)"],"flags":["Site claims founding year materially older than Companies House incorporation"]}},"last_reviewed":"2026-05-18"},{"slug":"peptagenix","name":"Peptagenix","category":"research-peptide-retailer","category_label":"Research peptide retailer","homepage":"https://peptagenix.co.uk","profile_url":"https://peptideclear.co.uk/retailer/peptagenix/","summary":"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.","founded_year":2024,"regulated":"Peptagenix UK Ltd 16041763, biotech R&D","companies_house":"16041763","coa":{"per_batch":null,"gating":"unverified","qr_verifiable":false,"lab_partner":"Accredited laboratories claimed (unnamed)","url":null,"trust_index":{"tier":"red","score":-1,"label":"CoA: weak / closed","reasons":["CoA practice unverified by UKMet team"],"flags":["Registered office is a known mail-forwarding address"]}},"last_reviewed":"2026-05-18"},{"slug":"biolab-shop","name":"BIOLAB Shop","category":"research-peptide-retailer","category_label":"Research peptides + SARMs + supplements supermarket","homepage":"https://biolabshop.co.uk","profile_url":"https://peptideclear.co.uk/retailer/biolab-shop/","summary":"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.","founded_year":2025,"regulated":"SHOPONLINEB LTD 16994764, VAT GB513896175, UK arm of Polish biolabshop.pl","companies_house":"16994764","coa":{"per_batch":null,"gating":"unverified","qr_verifiable":false,"lab_partner":"Independent certified research centres claimed (unnamed)","url":null,"trust_index":{"tier":"red","score":-1,"label":"CoA: weak / closed","reasons":["CoA practice unverified by UKMet team"],"flags":[]}},"last_reviewed":"2026-05-20"},{"slug":"direct-peptides-uk","name":"Direct Peptides UK","category":"research-peptide-retailer","category_label":"Research peptide retailer (US parent, UK subdomain)","homepage":"https://united-kingdom.direct-peptides.com","profile_url":"https://peptideclear.co.uk/retailer/direct-peptides-uk/","summary":"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.","founded_year":2017,"regulated":"US parent (Aspire Labs, Texas), no UK Companies House registration","companies_house":null,"coa":{"per_batch":null,"gating":"unverified","qr_verifiable":false,"lab_partner":"Third-party GMP-inspected ISO9001 facility (unnamed)","url":null,"trust_index":{"tier":"red","score":0,"label":"CoA: weak / closed","reasons":["Third-party lab named: Third-party GMP-inspected ISO9001 facility (unnamed)","CoA practice unverified by UKMet team"],"flags":["US parent, no UK Companies House registration"]}},"last_reviewed":"2026-05-18"},{"slug":"research-peptides-uk","name":"Research Peptides UK","category":"research-peptide-retailer","category_label":"Research peptide retailer (operator status unclear)","homepage":"https://www.researchpeptides.co.uk","profile_url":"https://peptideclear.co.uk/retailer/research-peptides-uk/","summary":"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.","founded_year":2018,"regulated":"UK Research Peptides Ltd 11246963 dissolved 2021-03-30; current operator unidentified","companies_house":null,"coa":{"per_batch":null,"gating":"none","qr_verifiable":false,"lab_partner":null,"url":null,"trust_index":{"tier":"red","score":0,"label":"CoA: weak / closed","reasons":["No CoA practice disclosed"],"flags":["Companies House entity dissolved, site still trading"]}},"last_reviewed":"2026-05-18"}]}