Independent scoring. Transparent methodology. Zero conflicts.

Polaris runs COAs per product rather than linking to a single page — each listing has its own Chromate Analytics or Janoshik report, and nine products have Finnrick endotoxin test results on top of that. Purity data we've reviewed averages 99.4% across eleven tested peptides with no failures. Access to the COA page itself requires a free account login, which is an extra step but not unusual for a members-model vendor. Ownership is publicly disclosed. This is one of the most comprehensively documented vendors in our database.

Bulk Peptide Supply publicly discloses ownership, lists a physical address, and covers seven products through Finnrick-verified third-party testing — a cleaner transparency profile than most vendors at this score level. Average purity is 99.4% across seven tests. The gaps are minor: no published contact information, and test coverage is still relatively thin for a catalog of this size. A reliable baseline with room to grow.

EZ Peptides publishes third-party lab results backed by Finnrick verification across six tested products, and the company lists a physical US address. Most purity results are solid, but one retatrutide batch came back at 93.2% — below the 95% threshold where we start flagging product quality. Whether that's a one-time outlier or a sign of inconsistency requires more data points. No named ownership. The testing infrastructure is real; we'd want to see that retatrutide result addressed before ranking this higher.