Independent testing labs & raters

The most widely-referenced independent lab in the research-peptide community. HPLC purity + LC-MS identity (sterility/endotoxin/heavy-metals on request); you can verify any report by its reference number at janoshik.com/verify. Note: not ISO/IEC 17025 accredited (a known community caveat).

Premium US peptide/SARM testing lab. HPLC-UV purity + mass-spec identity; DEA-registered and ISO-certified. Issues private COAs that vendors then post.

ISO/IEC 17025:2017-accredited lab — HPLC purity/quantity, sterility, endotoxin, ICP-MS trace metals, identity. Runs a 'Verified by Vanguard' certification program.

ISO-accredited contract analytical lab (nutraceutical/supplement/pharma). HPLC primary, plus TLC/UV/FT-IR; accepts individual samples. (US-based, despite some write-ups mislabeling it 'Australian'.)

Mail-in US lab (all 50 states). HPLC, LC-MS/ESI-MS identity, ICP-MS heavy metals, GC-MS residual solvents, endotoxin. Private COAs delivered by email.

Specialized research-use-only peptide lab — HPLC purity, MS identity, endotoxin and stability testing. Results surface via vendor-posted COAs and aggregator profiles.

Peptide-only purity/identity lab positioned as the domestic alternative to Janoshik for Canadians (no customs/seizure risk); HPLC + MS with publicly viewable COAs.

Regulator-aligned peptide characterization (RP-HPLC, MS) oriented to Health Canada / US FDA submissions — higher-rigor than a gray-market COA service.

HPLC/MS commercial-QC-style peptide testing via a partner lab staffed by pharma-QC scientists.

Procures samples, has them tested in commercial labs, and publishes per-vendor A–E safety grades per peptide (~8,000+ tests, 225+ vendors). This is the source we attribute the vendor grades on this site to.

Meta-aggregator: normalizes Finnrick's test data and Peptide Critic's community ratings into a single 0–10 benchmark across ~278 vendors, with confidence bands and a transparency/verifiability tier Finnrick doesn't provide.

Independent audit desk that places anonymous blind test orders, ships to rotating undisclosed labs, and publishes an X/100 audit score, a COA archive, a pricing index, and a public corrections log. No sponsored reviews or pre-screening.

“We don't sell peptides. We verify them.” Aggregates individual test records (peptide, shop, purity %, date, lab) and maintains per-lab profiles — surfacing MZ Biolabs, Janoshik, Vanguard and Freedom Diagnostics results.

Independent provider directory (2,100+ listings) that aggregates third-party analyses plus moderated community submissions and ranks vendors on testing evidence. Mixed provenance — community-moderated, not primary lab data.

Community vendor-review hub: 5-star community ratings plus a 'testing providers' resource list. Sentiment, not assay data — one of the two sources PeptideBenchmark normalizes.

Curated editorial directory of accredited third-party peptide labs (capabilities, accreditation, turnaround, pricing) plus long-form lab reviews. Curates rather than ranks or tests.