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Zinc Pyrithione
Zinc Pyrithione
Moderate concern
FDA-recognized OTC active for dandruff at 0.3-2% in shampoos. EU banned its use in cosmetics from March 2022 over reproductive-toxicity concerns, except in registered medicinal anti-dandruff products.
Found in
11 products
What it is
An organozinc antifungal/antibacterial agent used in dandruff and seborrheic dermatitis shampoos.
Not used in food; topical drug ingredient (anti-dandruff).
Why it's flagged
- EU CLP classification as reproductive toxicant Cat 1B
- Banned from EU cosmetics 2022
- Skin irritation
What regulators actually say
"Pyrithione zinc 0.3 to 2 percent... is an active ingredient that may be used in over-the-counter drug products for the control of dandruff."
Regulatory status
United States — FDA
OTC monograph active ingredient for dandruff (21 CFR 358.710)
European Union — EFSA
Banned in EU cosmetics from 1 March 2022 (CMR Reg 2021/1902)
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