Best Peptide Vendors — Independent Rankings
13 vendors ranked by overall score across four transparent criteria: COA transparency (25%), purity verification (25%), customer reviews (25%), and pricing value (25%). Vendors need data in at least 3 categories to receive a full ranking.
Particle Peptides
Soma Chems
Pure Rawz
Swiss Chems
Paradigm Peptides
Skye Peptides
Polaris Peptides
Limitless Biotech
BioLongevity Labs
Peptide Sciences
Core Peptides
Peptide Partners
Biotech Peptides
Insufficient Data (7 vendors)
These vendors have fewer than 3 scoring categories with data. Scores are preliminary and may change as we collect more information.
Astro Peptides
Peptide Crafters
NextChems
Chemyo
Simple Peptide
Apollo Peptide Sciences
Triumphant Labs
How We Rank Peptide Vendors
Every vendor on PeptideVerdict is evaluated using publicly verifiable data. We parse COA (Certificate of Analysis) documents using AI to check for third-party lab verification, recent test dates, and proper methodology. Purity scores factor in Finnrick independent testing results where available. Customer review scores are sourced from Trustpilot and other review platforms, covering product quality, shipping, and customer service in one metric. Pricing is normalized to price per milligram for fair comparison across different vial sizes and concentrations.
We disclose all affiliate relationships and never let commissions influence rankings. Vendors cannot pay for higher scores. Read our full scoring methodology for details.