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All editionsMethodologyUpdated · April 2026
Sources

Every claim, sourced.
No exceptions.

Every claim on this site traces back to a public source. Below is what we use and how.

Vendor data

Vendor websites (HQ, founded, prices, listings, payment, languages, affiliate terms). We re-check every 30 days; pricing PRs ship weekly.

Lab results

COAs published by the vendor or by independent labs (Janoshik Analytical for the EU-segment blind multi-lab). We render specimens verbatim — no edits to spec/result rows.

Reviews

Trustpilot snapshot (rating + count). We do not mirror review text. Removed-review clusters are tracked as incidents when corroborated.

Incidents & warnings

Regulator filings (NBR, ANVISA, FDA, etc.), corroborated forum reports, and public GDPR breach notifications. Each entry lists its sources inline.

Research references

Peer-reviewed publications cited on each peptide page (year, journal, citation count where known, DOI when public). Selected for relevance to the research-use context the peptide is sold under, not for marketing claims.