Protein powders — purity & heavy metals
Puori PW1 Grass-Fed Whey Protein, Bourbon Vanilla
Grass-fed Danish whey with bourbon vanilla — in CLP’s Clean Sixteen, plus unusually strong batch-level transparency.
VerdictCleanest tested whey — non-detect on all four heavy metals.
Why it ranks
CLP's ISO/IEC 17025 ICP-MS workup placed Puori PW1 in the Clean Sixteen non-detect tier for arsenic, cadmium, lead and mercury. I rank it first within that tie because Puori also stands out on current public transparency: live lot-linked testing language, long-running Clean Label Project ties, and an exact current product image that can be verified directly from the brand page.
Highlights
- Non-detect lead, cadmium, mercury and arsenic via ICP-MS (Ellipse Analytics)
- Grass-fed Danish whey — no plant-protein cadmium load
- Brand publishes lot-linked third-party testing and promotes Clean Label Project transparency
- Non-chocolate formula avoids cocoa-driven lead/cadmium load
- Exact live product image verified from the Puori brand page
Caveats
- Whey concentrate (~80%) — slightly more lactose than isolate
- Premium price tier; small batch availability outside the EU
Testing method
ICP-MS via Ellipse Analytics (ISO/IEC 17025) — Pb, Cd, As, Hg