Zinc Oxide 18.23% ●
TL;DR. This ingredient is a mineral UV filter that helps protect skin by reflecting, scattering, and absorbing UV radiation. At 18.23%, it is being used as a primary sunscreen active rather than a minor opacity or soothing additive.
What does Zinc Oxide 18.23% do in a cosmetic formula?
This ingredient is a mineral UV filter that helps protect skin by reflecting, scattering, and absorbing UV radiation. At 18.23%, it is being used as a primary sunscreen active rather than a minor opacity or soothing additive.
Is Zinc Oxide 18.23% clean?
Clean-beauty frameworks generally treat it favorably as a well-tolerated mineral sunscreen active, with extra scrutiny for nanoparticle form and loose-powder or spray formats because of inhalation exposure. It is not a common skin allergen and has a low irritation profile in leave-on products.
Is Zinc Oxide 18.23% sustainable?
This material is mineral-derived, so its footprint is tied to mining, purification, and particle-coating steps rather than renewable agriculture. It is inorganic and not biodegradable in the usual carbon-based sense, and environmental assessment depends strongly on particle size, coating, and release into waterways.
Is Zinc Oxide 18.23% COSMOS-approved?
It is permitted under COSMOS for natural and organic products when it meets purity, particle-size, and permitted-coating requirements. From a Green Chemistry view, it scores well for photostability and low skin reactivity, but less strongly on renewability and mineral extraction impacts.
How does Zinc Oxide 18.23% work chemically?
The molecule is an insoluble inorganic particulate made of a divalent metal cation and oxide anion in a crystalline lattice, often surface-treated to improve dispersion and reduce photocatalytic reactivity. At 18.23%, it sits within typical sunscreen-active ranges, is highly photostable, and requires careful dispersion, rheology control, and pH-compatible emulsifier systems to prevent settling or grittiness.
Last updated 2026-08-20