Peptide Vendors
Compare trusted research peptide vendors with quality ratings from Finnrick Analytics.
Quality scores powered by Finnrick Analytics
Independent third-party testing of peptide vendors
Verified Peptides
USA (founded 2020, in field since 2012)
"Every batch third-party tested. Pioneered third party lab testing with first report from 2019. Tests include purity, weight, endotoxins, sterility, and TFA content."
Peptide Sciences
USA
"99% purity verified by HPLC and Mass Spectrometry. WHO/GMP and ISO 9001:2015 certified."
Amazon
Biotech Peptides
Las Vegas, Nevada, USA
"99% purity, 3-Point Testing including TFA salts and heavy metals. Synthesized and lyophilized in the USA."
Core Peptides
USA
"99%+ purity verified by HPLC and Mass Spectrometry testing. Fast USA shipping."
Orbitrex Peptides
Iceland
"Top tier quality peptide vendor"
Regenerative Research
Denver, Colorado, USA
"Highest quality research peptides, every batch tested for both purity and endotoxins."
Swiss Chems
USA (founded 2018)
"99%+ purity, COAs available. 6+ years in operation with discreet worldwide shipping."
Research Use Only: Vendors listed sell research-grade peptides for laboratory use only. PepGuide is not affiliated with any vendor. Always verify current pricing and availability on vendor websites.