CI 77891 in Cosmetics: A Comprehensive Overview

​In the realm of cosmetics, there are numerous ingredients that play vital roles, and CI 77891 is one of the commonly seen ones. Let's take a detailed look at this ingredient.​

CI 77891, known chemically as titanium dioxide, also goes by other names such as titanium(IV) oxide, titania, titanium white, or Pigment White 6 (PW6) when used as a pigment. Its chemical formula is TiO₂, and it has a molecular weight of 79.866.

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Titanium dioxide, the substance behind CI 77891, is an inorganic solid. It is insoluble in water and typically appears white, though its mineral forms can sometimes be black.

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The functions of CI 77891 are quite significant in cosmetics. One of its key functions is acting as a physical sunscreen. Unlike chemical sunscreens that absorb ultraviolet radiation from the sun, it works by reflecting harmful UV rays, thus providing a protective barrier against the sun's damaging radiations. Another important function is that it serves as a whitening agent, contributing to the lightening effect in various cosmetic products.

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Due to these valuable functions, CI 77891 is used in a wide range of products. It can be found in sunscreens, where its sun protection function is crucial. Cosmetic powders also often contain it to help achieve a whitening and smooth finish. Additionally, it is present in items like toothpaste and soaps, adding to their functionality and appearance.

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In conclusion, CI 77891, or titanium dioxide, is a versatile ingredient in cosmetics, with its sun protection and whitening properties making it widely utilized in various products.​