Vendors don't pay for placement here.The Score is the Score.
PeptideScores is the independent rating system for research peptide suppliers. We score every major vendor on the same six categories — purity, service, shipping, selection, pricing, reputation — using third-party Certificates of Analysis and verified data, never vendor marketing. We don't sell peptides. We don't accept payment for placement. We publish a number, show our work, and update it when the data changes.
Top 15 Vendors
Global leaders in research peptides
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Southern Aminos
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15%
Flawless Compounds
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15% Off
Glow Aminos
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15%
Ion Peptides
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15%
Only 25 of 52 evaluated peptide suppliers meet PeptideScores verification standards.
Vendors that fail to meet our standards for quality, transparency, or consistent customer feedback are not publicly listed.
EZ Peptides
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10%
Limitless Life
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15%
IDUN Peptides
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10% stackable
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Vendors from USA, UK, EU, Canada, Australia