Verified Sources
Every vendor ranked by sourcing transparency and COA quality.Affiliate links are labeled. Rankings are provable.
Preferred Vendors
Ranked by COA quality and sourcing transparency.
BioLongevity Labs
Amino Club
Chameleon Peptides
Ascension Peptides
Midwest Peptide
Hydro Research Peptides
LiveWell Peptides
PSPeptides
Sports Technology Labs
Pure Rawz
Rescue Research USA
Limitless Life Nootropics
Pepformance
Peptide Plugs
SomaChems
Apollo Peptide Sciences
More Research Tools
Deep-dive into COA transparency, supply chain sourcing, and live price data on their dedicated pages.
COA Lookup →
Which vendors publish real, independent lab tests, and which recycle, fabricate, or omit them entirely.29 vendors tracked.
Supply Chain Guide →
How peptides move from Chinese API manufacturers through 503A/503B compounding or gray-market importers to you, and exactly what to verify.
Price Index →
Median $/mg across 60 peptides from research vendors. Winsorized, updated weekly.
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Educational only, not medical advice. Consult a licensed healthcare provider before using any compound.