{"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.","seller":{"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 (no specific lab name disclosed); Premium range adds full endotoxin and heavy metal testing","url":"https://coa.purepeptidesuk.com","trust_index":{"tier":"green","score":5,"label":"CoA: strong","reasons":["Per-batch CoA published","CoA open without gating","Third-party lab described but not named: ISO9001-certified UK partner lab (no specific lab name disclosed); Premium range adds full endotoxin and heavy metal testing","Dedicated CoA URL: https://coa.purepeptidesuk.com"],"flags":[]}},"business_transparency":{"status":"confirmed","label":"Confirmed"},"responsible_practice":{"status":"clear","label":"Clear and responsible","reasons":[],"baseline_review_pending":false},"independent_verification":{"verified":false,"checks_count":null,"areas_count":null,"verified_date":null,"report_url":null},"last_reviewed":"2026-08-19"}}