Trust Review

How PeptideClear rates retailers, clinics, and pharmacies

PeptideClear Trust Review is the master reference for how we assess UK research-peptide retailers. Every retailer we can find is scored the same way, for free, against Testing Transparency, Business Transparency, and Responsible Practice. Retailers can additionally pay for Independent Verification, a deeper, human-run check of the evidence behind those signals. This page explains how each of those works, who runs them, and how often they're refreshed. GLP-1 clinics and pharmacies are included editorially on the basis of their UK regulatory status (GPhC-registered pharmacies, CQC-registered clinics with a GMC-registered prescriber) rather than a separate scored framework. PeptideClear is editorial only. We are not a pharmacy and we are not a clinic.

The free PeptideClear Trust Index

Every UK research-peptide retailer we can find is scored the same way, automatically, for free. Nobody applies, nobody pays for a better result. Three separate things are reported, and never blended into one number:

• Testing Transparency. Six observable signals about published Certificates of Analysis (see below) resolving to green, amber, red, or "needs re-confirmation" where a specific signal needs re-checking before a tier is published.
• Business Transparency. Whether a UK trading entity behind the retailer can be confirmed at Companies House.
• Responsible Practice. Whether the retailer's overall online presentation (claims, policies, research-use positioning) reflects a genuine effort to be clear, fair and transparent, on a four-point scale from "Clear and responsible" to "Material concerns."

Full detail on all three: PeptideClear Trust Index.

Independent Verification (paid)

Independent Verification is a separate, paid, human-run assessment that goes further than the free checks above: laboratory accreditation checks, corporate and regulatory history, a full catalogue review, and a claims and marketing audit. Payment buys the work, not the result: an adverse finding publishes exactly the same way as a clean one, and it never changes a retailer's free Trust Index score.

A retailer that completes this process and has no unresolved material findings is marked Independently Verified, shown on its own retailer page with a link to the full findings. As of this page's last review, one retailer, Ascend Peptides UK, has completed the process. Full detail: Independent Verification.

The CoA tier system (research peptides only)

Certificates of Analysis are the single most discriminating signal for research-peptide retailer trust. PeptideClear scores every UK research-peptide retailer against six observable signals: per-batch CoA publishing, gating method (open, email-gated, login-gated, image-only, or absent), third-party laboratory partner naming, QR-verifiable batch lookup, dedicated CoA URL, and public stance on independent testing. The score resolves into three tiers.

Full per-retailer scores are published at PeptideClear Trust Index. This is a manual editorial process today, not an automated pipeline: we're saying so plainly rather than implying more automation than exists. Retailers can request a re-review at any time by emailing the editorial team and pointing to the updated evidence.

Source hierarchy

Editorial relies on a tiered source hierarchy. Higher tiers always override lower tiers when sources disagree.

1. Tier 1, regulatory primary sources. MHRA, NICE TA, NHS England commissioning guidance, GPhC pharmacy register, GMC prescriber register, ASA CAP code rulings, Companies House filings. These are authoritative for any UK regulatory or licensing claim.
2. Tier 2, clinical primary sources. Peer-reviewed publications indexed in PubMed (SURMOUNT, STEP, SELECT, BPC-157 preclinical literature). Manufacturer Patient Information Leaflets (PILs) from Eli Lilly, Novo Nordisk, and equivalents. British National Formulary.
3. Tier 3, professional secondary sources. The Pharmaceutical Journal, Health Foundation, BHF, Diabetes UK, NHS Confederation. UK clinical bodies. Trade press where independently sourced.
4. Tier 4, commercial materials with caveat. Clinic and pharmacy materials are cited for pricing, dosing schedules they offer, and policy. Never for clinical claims. International sources (FDA, EMA) where they pre-date UK guidance.
5. Excluded. Forum posts, anonymous user content, influencer-only sources, brand blogs as the primary source for clinical claims, US bodybuilding-forum dosing protocols, content promoting compounded or grey-import GLP-1.

Conflict of interest

PeptideClear takes no commission, referral fee or payment of any kind from any retailer, clinic or pharmacy it writes about. Inclusion in any directory or comparison is not contingent on a commercial relationship, because there is no commercial relationship. Full disclosure at how we are funded.

Review cadence and corrections

Trust Index checks are refreshed by manual editorial review, not on a fixed automated schedule. Material changes (new regulatory action, change of company status, a public consumer-protection issue) trigger re-review outside the normal cycle. The framework itself (the CoA signals, the Responsible Practice scale, the source hierarchy) is reviewed periodically and updated when UK regulatory or industry standards change. This page was last reviewed 2026-08-19.

Corrections are processed within five working days of being notified. Email [email protected] with a link to the page and the evidence. Material corrections add a dated correction note to the page footer.