Every vendor we audit, ranked

What stands out: Four distinct third-party test categories — deepest documentation found

What to know: No customer reviews shown on product pages (social proof hidden)

What stands out: Public batch COA library (HPLC/MS + endotoxin)

What to know: Credit-card only

What stands out: Triple-verification on every batch (HPLC+MS+LAL) — only seeded vendor doing all three

What to know: Discount-dependent value — base prices premium, collapse to competitive only after 50% off

What stands out: ISO 17025-accredited dual-lab testing (Vanguard + Eagle)

What to know: No public affiliate program (discount codes only)

What stands out: Named labs: Vanguard, Chromate, Freedom Diagnostics

What to know: Affiliate commission not public (GoAffPro portal-only)

What stands out: >99% purity with batch-specific HPLC/MS COAs

What to know: Premium pricing

What stands out: Broad test panel: HPLC, MS, endotoxin, sterility

What to know: Third-party lab name not disclosed

What stands out: Public, no-login batch COA library

What to know: Specific lab names not disclosed

What stands out: 400+ published COAs with batch numbers and dates

What to know: Third-party lab name NOT disclosed - COAs unverifiable

What stands out: Refersion affiliate: 20-30% tiered, 90-day cookie

What to know: No named lab / independent verification

What stands out: Finnrick-verified 99.8% median (99 samples), 100% identity pass

What to know: Members-only model limits open transparency

What stands out: Same-day dispatch before 12pm EST; free over $200

What to know: Lab names not disclosed

What stands out: Per-batch COA reporting cited as a documentation strength

What to know: No primary evidence (purity %, $/mg, lab names) captured in recon

What stands out: Same-day shipping (before 1pm EST); free over $99

What to know: Testing lacks full HPLC impurity profiling

What stands out: Same-day US shipping

What to know: Purity not independently verified

What stands out: Janoshik third-party MS testing (verifiable at janoshik.com/verify)

What to know: FDA Warning Letter (12/2024) for unapproved-drug disease claims

What stands out: Larger catalog (25+ compounds) than several premium peers

What to know: No primary purity %, pricing, or lab data captured in recon

What stands out: Operating since 2018, ~4.2-star Trustpilot

What to know: COAs on request, not public; lab often unnamed

What stands out: Established presence; recurs across multiple competitor ranking lists

What to know: Premium price point — BPC-157 runs ~$10/mg, well above value leaders

What stands out: Fast FedEx (2-day / overnight); same-day cutoff

What to know: Finnrick found a 'semaglutide' sample that was actually tirzepatide (identity failure)

What stands out: Large catalog (103+ SKUs), competitive mid-range pricing

What to know: No hosted/searchable per-batch COA library; lot numbers absent from product pages

What stands out: Open affiliate: 7% base rising to 15% for active promoters

What to know: Independent retests below label (e.g. ~91% BPC-157 vs 99% advertised)