Worst-of leaderboards across four axes — composite trust, lowest avg purity, highest endotoxin failure rate, and worst underfillers — built from third-party COA data with the actual sample sizes published. No paid placement. No vendor pays to appear here, no vendor pays to NOT appear here, no vendor sees this list before you do. Re-runs from live tables every 5 minutes.
Trust score blends four axes (purity 40% / dose accuracy 20% / community sentiment 20% / incidents 20%) × confidence (capped at n_batches/30). Vendors with fewer than 5 tested batches don't appear on any list.
purity_pct, ascending.endotoxins_status reads detected, high, or low; requires ≥3 endotoxin-tested batches to qualify.quantity_deviation_pct < -3% (material underfill) by ascending mean deviation. The "worst single batch" column shows the single most-deviant batch we've seen.Source files: scripts/vendors_leaderboard.py, data/coa.db, data/forums.db, data/titratelab_kb.db.
Top of this list is the highest-rated vendor we track. Even there, the per-axis flags reveal what a one-line "A+ rating" hides — the worst single batch, the endotoxin gap, the warts. Only vendors with at least 15 tested batches qualify; everyone else has too small a sample to call.
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Forget vendor averages — these are the individual smoking guns. Vials shipped with a fraction of what was on the label, ranked by the worst single batch in our corpus. Each row links to the actual COA on the testing lab's site so you can verify before you believe.
Recent third-party tests that flagged at least one quality concern: sub-95% purity, ≥10% underfill, or detected endotoxins. The community group-test of ERP's SS-31 (44.10mg in a 50mg vial — the incident our research bot has been citing) is here. So is everything else.
Above is a public sample. The full sortable leaderboard, vendor detail pages with per-batch COA citations, and ranked alerts when sentiment shifts on a vendor you watch — all open after launch. Founding 20 waitlist gets lifetime access at zero cost; everyone else unlocks it after $1k routed.
Join the waitlist →