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.
About our ratings methodology
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.
23 vendors scored · 6 categories · Updated daily
Only 23 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.
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