Question 1

What does May Contain/Peut Contenir : CI 77891 do in a cosmetic formula?

Accepted Answer

This ingredient is primarily a white mineral pigment and opacifier, used to add coverage, brightness, and opacity in color cosmetics, sunscreens, and personal care formulas.

Question 2

Is May Contain/Peut Contenir : CI 77891 clean?

Accepted Answer

Clean-beauty frameworks usually allow this ingredient, but they may flag inhalable loose powders, nano forms, or surface-treated grades for extra review. On skin, it is generally well tolerated and has low irritation potential.

Question 3

Is May Contain/Peut Contenir : CI 77891 sustainable?

Accepted Answer

This material is mined and refined, so its footprint is tied to mineral extraction and energy-intensive processing. It is not biodegradable because it is inorganic, but it is environmentally persistent mainly as an inert mineral particle rather than a bioaccumulative organic pollutant.

Question 4

Is May Contain/Peut Contenir : CI 77891 COSMOS-approved?

Accepted Answer

It is permitted in COSMOS natural and organic products when it meets mineral colorant rules, with additional scrutiny for nano forms and certain exposure routes. Its Green Chemistry fit is mixed because it is non-renewable and not biodegradable, although it is stable, low-reactivity, and effective at modest use levels.

Question 5

How does May Contain/Peut Contenir : CI 77891 work chemically?

Accepted Answer

This inorganic oxide pigment consists of high-refractive-index mineral particles that scatter visible light strongly, which gives opacity and whitening. It is insoluble, photostable, and stable across normal cosmetic pH, and surface coatings or dispersion aids are often used to improve spread, reduce clumping, and manage reactivity in emulsions or powders.