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Zinc Citrate

Limits microbes.

What it is

The zinc salt of citric acid, the acid found in citrus fruits.

Used mainly in products for the mouth, where it helps slow microbial growth and protect against plaque.

A short summary from the dictionary, not yet an in-depth article. About these entries

What it does in a formula

Limits microbesOfficial EU function: Antimicrobial
Used in oral careOfficial EU function: Oral care

What official sources say

Restricted in certain uses · Cosmetics, EU

Allowed in EU cosmetics only within set limits and conditions (Annex III, entry 24).

Regulation (EC) No 1223/2009, Annex III: list of substances which cosmetic products must not contain except subject to the restrictions laid down (CosIng), retrieved 2026-10-09

A label gives no amounts, so none of this says a product is unsafe.