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Beauty ingredient · Anti-dandruff agent / preservative

Zinc pyrithione

CAS
13463-41-7

An anti-dandruff active. Classified in the EU as a reproductive toxicant (CMR category 1B), it has not been permitted in EU cosmetics since March 2022.

  • Antimicrobial agent
  • Preservative
  • Expert review pending
High concern Level 3 of 4 How concern levels work

A regulatory warning or restriction somewhere, or strong evidence of harm at typical intake. The concern level sets how many points zinc pyrithione costs on a product’s receipt.

What the evidence says

  • Reproductive or developmental toxicantRegulatory

    Classified as a CMR substance of category 1B (reproductive toxicant) under Delegated Regulation (EU) 2020/1182. [1]

  • Not permitted in cosmetics somewhereRegulatory

    Deleted from the EU lists of allowed preservatives and restricted substances and added to Annex II (prohibited) from 1 March 2022. [1]

Evidence tiers say how sure the evidence is, separately from how much it matters. About evidence tiers.

Rules around the world

WhereStatusDetailsDateSource
European Union Banned Added to Annex II (prohibited in cosmetic products) by Regulation (EU) 2021/1902. Mar 1, 2022 [1]

“Banned” means explicitly prohibited or withdrawn after review; “not permitted” means never authorized there. We use each regulator’s own words.

Names GoodSwap recognizes on labels (6)
  • zpt
  • pyrithione zinc
  • zinc pyrithione
  • pyrithione zinc 1
  • pyrithione zinc 2
  • zinc pyrithione 1

Sources

  1. Commission Regulation (EU) 2021/1902 of 29 October 2021 amending Annexes II, III and V to Regulation (EC) No 1223/2009 as regards the use in cosmetic products of certain substances classified as CMR

    European Union (Official Journal) · Oct 29, 2021 · Law

    “This Regulation covers the substances classified as CMR substances by Delegated Regulation (EU) 2020/1182 (3), which will apply from 1 March 2022.”

    eur-lex.europa.eu