Piroctone Olamine
Korean INCI: 피록톤올아민 · Also written as: 옥토피록스
Evidence-backed
What it is
Evidence-backed anti-dandruff active
How it affects the score
Backed by regulators or clinical evidence. Scores +12 when in the top/mid of the list, +7 near the tail.
How to read it on the label
Check whether it sits in the top third of the ingredient list — near the tail means low concentration and limited effect.
Ingredients are listed by descending concentration. Anything after the ~1% anchors (EDTA, hexanediol, preservatives) is effectively trace.
Check your own shampoo
Paste your full ingredient list to see this ingredient's position and the overall score.
Related ingredients
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Zinc Pyrithione · Evidence-backed
Coal Tar · Evidence-backed
※ For reference only, based on public ingredient data — not medical advice.