MONOGRAPH No. 017
🇪🇺 EU-Specific
How to vet an — EU peptide supplier.
Not all EU research peptide vendors are equal. These are the 8 criteria PeptideCompare uses to evaluate every vendor we list.
Last reviewed:
1
Verifiable business registration
Must have a publicly verifiable business registration in an EU or UK jurisdiction — KvK (NL), CIF (ES), Companies House (UK), etc. Anonymous websites are an immediate disqualifier.
Must have a publicly verifiable business registration in an EU or UK jurisdiction — KvK (NL), CIF (ES), Companies House (UK), etc. Anonymous websites are an immediate disqualifier.
2
Independent batch-specific COA
Must come from a named third-party lab, reference a specific batch number, and include HPLC purity ≥98% with mass-spec identity confirmation.
Must come from a named third-party lab, reference a specific batch number, and include HPLC purity ≥98% with mass-spec identity confirmation.
3
Public pricing and product information
Clear pricing and product specifications published publicly. DM-only pricing is a red flag for inconsistency.
Clear pricing and product specifications published publicly. DM-only pricing is a red flag for inconsistency.
4
Tracked shipping with temperature awareness
Tracking as standard. Cold packs available for temperature-sensitive peptides.
Tracking as standard. Cold packs available for temperature-sensitive peptides.
5
Return and complaint policy
EU consumer protection law requires a minimum returns policy. Vendors that exclude all returns have removed your primary recourse.
EU consumer protection law requires a minimum returns policy. Vendors that exclude all returns have removed your primary recourse.
6
No therapeutic claims
Reputable research vendors do not claim their products "cure," "treat," or "diagnose" anything. Such claims violate the research-use framework.
Reputable research vendors do not claim their products "cure," "treat," or "diagnose" anything. Such claims violate the research-use framework.
7
Consistent presence and history
How long has the vendor operated? Consistent online presence with verifiable reviews. New vendors (under 12 months) carry more risk regardless of other credentials.
How long has the vendor operated? Consistent online presence with verifiable reviews. New vendors (under 12 months) carry more risk regardless of other credentials.
8
Responsive customer service
A vendor that does not respond to pre-purchase enquiries will not respond well to post-purchase problems.
A vendor that does not respond to pre-purchase enquiries will not respond well to post-purchase problems.
✓ PeptideCompare applies all 8 criteria before listing any vendor. Our CMI (Confirmed Market Integrity) badge is awarded to vendors that score highest across all criteria.
See all vetted EU vendors
17 vendors tracked · Business-registered · COA-verified · Ranked by value score