Micronised Zinc Oxide
INCI: Zinc Oxide
Reviewed by Emma · Last updated 18 Aug 2026
Also known as: Nano Zinc Oxide, Z-Cote, Microfine Zinc
Fine particle mineral sunscreen for invisible protection
Addresses
EWG Safety Score
What Is Micronised Zinc Oxide?
Micronised zinc oxide is zinc oxide that has been processed into extremely fine particles, typically less than 100 nanometers. This smaller particle size provides more transparent application compared to regular zinc oxide.
Zinc oxide is a broad-spectrum mineral UV filter that reflects and scatters both UVA and UVB rays. The micronised form maintains this protection while reducing the white cast typically associated with mineral sunscreens.
It is one of the most gentle and stable sunscreen ingredients available, suitable for sensitive and reactive skin types.
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Micronised Zinc Oxide is a variant of Zinc Oxide, the form you will most often see on an ingredients list.
The physical blocker
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Zinc Oxide
The physical blocker
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