Directory
Every UK peptide supplier
Ranked by Reliability Score
Top 1 suppliers
Provisional score
How the score works
Reliability Score (0–100)
The score only counts objective or human-moderated signals. PeptideCompare does not test or audit any product, so a high score means “well-evidenced and well-behaved listings” — not “safe”, “legal” or “high purity”. The score is provisional and may change as we learn what is useful.
Nothing a supplier pays can raise it. Every supplier pays the same flat fee, and there is no commission, affiliate, advertising or self-rating input. How confidence works →
| Signal | Max pts |
|---|---|
Link health Share of live listings whose outbound link passed our automated check | 25 |
Documentation Share of listings with an uploaded CoA file — a claim without a file scores 0 | 25 |
Moderated buyer feedback Approved reviews only; full volume credit at 10+ | 35 |
Account maturity Months listed and listing completeness — never fees paid | 15 |
Full directory
Reliability95/100
From£30.00
Products6
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£10/month + £1 per listing. No commission on your sales.