May Contain: CI 77891 ●
TL;DR. This ingredient is primarily an opaque white colorant and opacifier in makeup, skin care, and personal care products. In sunscreen formats, approved grades can also function as a mineral UV filter by scattering and absorbing UV light.
What does May Contain: CI 77891 do in a cosmetic formula?
This ingredient is primarily an opaque white colorant and opacifier in makeup, skin care, and personal care products. In sunscreen formats, approved grades can also function as a mineral UV filter by scattering and absorbing UV light.
Is May Contain: CI 77891 clean?
Clean-beauty frameworks generally accept it in creams, lotions, and pressed color cosmetics, with more scrutiny for nano grades and inhalable powders or sprays because particle size and exposure route matter. It is usually well tolerated on skin, including sensitive skin, when properly dispersed.
Is May Contain: CI 77891 sustainable?
This material comes from mined mineral feedstocks and requires refining, so its footprint is tied to extraction and processing energy. As an inorganic material, it is not biodegradable in the usual carbon-based sense, but it is relatively stable and not associated with bioaccumulation in the way many persistent organics are.
Is May Contain: CI 77891 COSMOS-approved?
It is permitted under COSMOS natural and organic standards when the grade, particle size, and use meet the standard’s requirements, with added documentation for nano or UV-filter applications. Its Green Chemistry fit is mixed, it is abundant and stable, but nonrenewable, mined, and not biodegradable.
How does May Contain: CI 77891 work chemically?
The molecule is an inorganic oxide used as high-refractive-index crystalline particles, commonly in rutile or anatase forms, which explains its whiteness, opacity, and UV-scattering behavior. It is insoluble, broadly pH-stable, and often surface-treated with silica, alumina, or fatty substances to improve dispersion, reduce photocatalytic activity, and support formula feel.
Last updated 2026-05-13