Zinc Oxide 12%. Inactive Ingredients: Water/Aqua/Eau

TL;DR. This ingredient is a mineral UV filter that helps protect skin by reflecting, scattering, and absorbing UVA and UVB radiation. At 12%, it is used at an active-sunscreen level rather than as a minor colorant or soothing additive.

What does Zinc Oxide 12%. Inactive Ingredients: Water/Aqua/Eau do in a cosmetic formula?

This ingredient is a mineral UV filter that helps protect skin by reflecting, scattering, and absorbing UVA and UVB radiation. At 12%, it is used at an active-sunscreen level rather than as a minor colorant or soothing additive.

Is Zinc Oxide 12%. Inactive Ingredients: Water/Aqua/Eau clean?

This ingredient is widely accepted in clean-beauty frameworks, especially for mineral sunscreen positioning, and it has low sensitization potential. The main clean-standard friction is particle size, surface coating, inhalation relevance in powders or sprays, and transparency around nano status.

Is Zinc Oxide 12%. Inactive Ingredients: Water/Aqua/Eau sustainable?

This material is mineral-derived, not renewable, and not biodegradable because it is an inorganic solid. Environmental review focuses on particle persistence, aquatic exposure from rinse-off or beach-use products, and the mining and processing footprint.

Is Zinc Oxide 12%. Inactive Ingredients: Water/Aqua/Eau COSMOS-approved?

It is permitted under COSMOS-natural and COSMOS-organic standards when it meets the standard’s mineral UV-filter and regulatory conditions, with nano status and coatings requiring closer documentation. From a Green Chemistry lens, it scores well for photostability and low reactivity, but less well for nonrenewable sourcing and lack of biodegradation.

How does Zinc Oxide 12%. Inactive Ingredients: Water/Aqua/Eau work chemically?

This compound is an inorganic metal oxide solid that functions through band-gap UV absorption plus light scattering, with performance strongly shaped by particle size, dispersion quality, and surface treatment. In sunscreens it is commonly used around 5% to 25%, is photostable across normal cosmetic pH ranges, and needs good wetting, milling, and suspension support to reduce whitening and settling.

Last updated 2026-08-18