What it is
CI 77891 is the color index designation for titanium dioxide used as a white pigment. In cosmetics it provides whiteness, opacity, and coverage, helping tone-up and tinted formulas brighten the appearance of skin. In this colorant role it is valued for its strong opacity and stable white tone.
Safety & warnings
As a topical pigment, titanium dioxide is generally well tolerated and non-sensitizing on skin, with very low irritation potential.
Origin & sourcing
A mineral-derived inorganic pigment; titanium dioxide is processed from titanium ores into a refined cosmetic-grade powder.
Questions everyone asks
What is CI 77891?
It is the color index name for titanium dioxide used as a white pigment and opacifier.
Why is it in tinted sunscreens?
As a white pigment it adds opacity and brightness, helping tone-up and tinted formulas even out the look of skin.