Medium Concern

Nano Zinc Oxide

Flagged by EWG Skin Deep as a nanoparticle penetration concern concern

What it is

Zinc oxide in nanoparticle form used in sunscreens and cosmetics. Nanoparticles may penetrate skin more deeply than conventional particles.

Found in 10 products on this site

Sorted worst score first. Lower score = more concerning overall formulation.

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