Vendor scorecards
Grades reflect only community-submitted samples whose results were made public. They are not a clinical, safety, or quality guarantee. A few samples can't represent every batch a vendor makes. Fictional DEMO samples are left out unless this server is explicitly in demo mode. For research use only; not medical advice and not an endorsement or accusation of any vendor.
| # | Vendor | Grade | Tests | Avg / min purity | Identity | Mass ±10% | HM / Endo | Last tested | Trend |
|---|---|---|---|---|---|---|---|---|---|
| No public results yet. | |||||||||
How grades are calculated
- Only public results count. Private group results never feed a scorecard. Scorecards are rebuilt automatically whenever a result is published, unpublished or edited.
- Purity score per test = (purity % − 90) × 10, kept between 0 and 100. So 99% = 90 points, 98% = 80, 90% or less = 0. The vendor's purity score is the average.
- Identity pass rate = tests where identity was confirmed ÷ tests with an identity result (inconclusive counts as not passed).
- Mass accuracy pass rate = tests where the measured amount is within ±10% of the label claim.
- Contaminant pass rate = heavy-metal and endotoxin tests passed ÷ run.
- Score = 40% purity + 30% identity + 20% mass accuracy + 10% contaminants. A part nobody tested is left out and the other weights are scaled up to 100%.
- Caps: any failed identity → grade at most D. Any heavy-metal or endotoxin fail → at most C.
- Grade: A ≥ 90 · B ≥ 80 · C ≥ 70 · D ≥ 60 · F below 60. Fewer than 3 tests is flagged "limited data".
- A test counts as failed if identity is not confirmed, heavy metals or endotoxin fail, purity is under 90%, or the amount is off by more than 20%. Failed tests show as red dots on the trend chart.