Allowed, with limits
Restricted in the EU
- What it can be used for
- Cares for teeth and mouth, conditions skin, kills or slows microbes and reduces or masks body odor (the functions the EU ingredient database, CosIng, lists for it; a product may use it for any of them)
- CAS number
- 4468-02-4
Why it’s flagged
Allowed in EU cosmetics only with limits.
- Annex III entry 24; products: (a) Toothpaste intended for users above 1 year of age; (b) Toothpaste intended for children between 6 months and 1 year of age; (c) Mouthwash intended for users; max (a) 1 % (as zinc); (b) 0,72 % (as zinc); (c) 0,1 % (as zinc); (d) 1 % (as zinc). Source: EU Cosmetics Regulation, Annex III (restricted)
Annex III (restricted substances) or Annex V (preservatives) of the EU Cosmetics Regulation sets maximum amounts, allowed product types or required warnings.
What this page can’t tell you
These lists describe what a substance can do, its hazard. The risk from one product depends on how much is in it and how you use it, and the label doesn’t say how much.
Not being on a list doesn’t make an ingredient safe. It may never have been assessed.
Check your products
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“Products that list it” opens Open Beauty Facts, a free database anyone can edit.
Flagged the same way
Official lists checked September 2026. Spotted a mistake? Tell us.