Question 1

What does Active: Zinc Oxide 13.1%. Inactive: Water do in a cosmetic formula?

Accepted Answer

This ingredient is an inorganic UV filter that helps protect skin by absorbing, scattering, and reflecting ultraviolet light. In this formula, it is the active sunscreen agent at 13.1%.

Question 2

Is Active: Zinc Oxide 13.1%. Inactive: Water clean?

Accepted Answer

This ingredient is widely accepted in clean-beauty standards, especially for mineral sunscreen positioning, and it is generally well tolerated on skin. Main points of scrutiny are particle size, inhalation exposure in sprays or loose powders, and potential whitening or texture effects.

Question 3

Is Active: Zinc Oxide 13.1%. Inactive: Water sustainable?

Accepted Answer

This material is mineral-derived, so sourcing depends on mining and mineral processing rather than renewable agriculture. It is not biodegradable because it is inorganic, and environmental assessment focuses on particle persistence and metal-ion release under certain water conditions.

Question 4

Is Active: Zinc Oxide 13.1%. Inactive: Water COSMOS-approved?

Accepted Answer

This ingredient is permitted under COSMOS-natural and COSMOS-organic standards when it meets the standard’s specifications, including particle-size and coating requirements where relevant. Its Green Chemistry profile is mixed, since it is mineral-based and stable, but not renewable or biodegradable.

Question 5

How does Active: Zinc Oxide 13.1%. Inactive: Water work chemically?

Accepted Answer

The compound is an insoluble inorganic lattice material used as dispersed particles, often surface-treated or paired with dispersants to improve spread, stability, and transparency. In sunscreens, active levels commonly range from about 5% to 25%, and performance depends strongly on particle size, dispersion quality, film uniformity, and compatibility with the water phase.