Know exactly who you're buying from.

Polaris runs COAs per product rather than a single page — each listing carries its own Chromate Analytics or Janoshik report. Eleven tested peptides average 99.4% purity, with no results below 98.36%. On top of that, Finnrick endotoxin records exist for multiple products, adding a second independent verification layer that most vendors at this score level don't have. Ownership is publicly disclosed. The COA archive requires a free account login to browse, which is a minor friction point but not unusual for a members-model vendor. Physical address is not on the public site. The testing documentation here — named labs, batch-specific COAs, independent endotoxin verification — is among the most comprehensive we review. The missing physical address is the one remaining accountability gap in an otherwise strong file.

The strongest purity profile among new vendors in this review cycle: seven Finnrick tests averaging 99.84% with a floor at 99.60%. Retatrutide tested three times (99.80%–99.93%), BPC-157 twice (99.80%–99.94%), CJC-1295 once (99.60%), and Melanotan II once (99.90%). These results are not marginal passes — the consistency across different peptide types and over time indicates a quality-controlled supply chain. Transparency signals are comprehensive: contact info, physical address, ownership disclosure, lab methodology, and batch traceability are all confirmed. Domain registration date was unavailable, but no other accountability gaps are present. The combination of exceptional purity documentation and full public accountability makes Oasis Peptides one of the better-positioned vendors we have evaluated.

Paramount Peptides sits at the top of the Trusted tier on the strength of 65 Finnrick-tested samples across 8 products. Seven recent purity results span 98.57–99.95%: Retatrutide 99.67–99.95%, Tirzepatide 99.08–99.83%, BPC-157 98.57–99.95%. Median purity across all 65 tests is 99.7% per Finnrick — 97% of passing samples above 98%. Physical address and contact information are publicly listed. Transparency flags are complete. No ownership disclosure on file. At 91, this is an Elite vendor with a deep, independently verified testing record and the accountability infrastructure to match it.