Quality tester directory
The labs that independently verify peptide purity and identity. A vendor is only as trustworthy as its test results — and the lab that produced them.
Janoshik Analytical
Czech Republic · ISO 17025 compatible methodology
The most-referenced independent peptide testing lab among research-vendor communities. Publishes full chromatograms and mass-spec results batch-by-batch on vendor sites.
HPLCMass SpectrometryQuantitative Analysis
Used by 32 tracked vendors
Finnrick Research Labs
Finland · EU GMP-aligned
European-based quality testing specialising in research peptides. Strong reputation for turnaround speed on batch COAs. Used by several EU-based vendors we track.
HPLCNMREndotoxin testing
Used by 32 tracked vendors
Freedom Diagnostics
United States · CLIA-waived facility
US-based independent testing lab popular with consumer-facing peptide vendors. Full analytical reports available for download per batch.
HPLCMass SpectrometryPurity verification
Used by 32 tracked vendors