Question 1

What does Active: Titanium Dioxide 15% do in a cosmetic formula?

Accepted Answer

This ingredient is a mineral UV filter used in sunscreens and SPF cosmetics, primarily to scatter and absorb UV radiation. At 15%, it provides substantial broad-spectrum coverage, especially when well dispersed in an even film.

Question 2

Is Active: Titanium Dioxide 15% clean?

Accepted Answer

This ingredient is generally accepted in clean-beauty frameworks, especially in lotions and creams. The main flags are inhalation concerns in loose powders or sprays, nanoparticle disclosure, and the need for surface treatment to manage photocatalytic activity.

Question 3

Is Active: Titanium Dioxide 15% sustainable?

Accepted Answer

This material is mineral-derived and comes from mined feedstocks, so it is not renewable or biodegradable in the usual organic-chemistry sense. It is environmentally persistent as an inorganic particle, with more scrutiny around nano-scale grades in aquatic systems.

Question 4

Is Active: Titanium Dioxide 15% COSMOS-approved?

Accepted Answer

It is permitted under COSMOS-natural and COSMOS-organic when it meets purity, coating, and nanomaterial rules for the intended use. From a Green Chemistry view, it is only a partial fit because it is non-renewable and persistent, though it is photostable, effective at low-to-moderate percentages, and can reduce reliance on more controversial UV-filter systems.

Question 5

How does Active: Titanium Dioxide 15% work chemically?

Accepted Answer

It is an insoluble inorganic particulate UV filter that works through scattering plus UV absorption, with coatings such as alumina, silica, or fatty-acid treatments often used to improve dispersion and reduce photocatalytic reactivity. In sunscreens it is commonly used around 2% to 25%, and performance depends heavily on particle-size distribution, coating, dispersion quality, and final film uniformity.