CI 77491 [1] ●
TL;DR. This ingredient is an inorganic pigment used to add red to brown color, opacity, and shade correction in makeup, tinted skin care, hair color, and some personal care products.
What does CI 77491 [1] do in a cosmetic formula?
This ingredient is an inorganic pigment used to add red to brown color, opacity, and shade correction in makeup, tinted skin care, hair color, and some personal care products.
Is CI 77491 [1] clean?
From a clean-beauty perspective, it is generally well tolerated because it is insoluble, non-fragrant, and not a common sensitizer. The main quality issue is trace heavy-metal impurities, which are managed through cosmetic colorant purity specifications.
Is CI 77491 [1] sustainable?
This material is mineral-derived or nature-identical through controlled manufacture, so sourcing can involve mining or energy-intensive processing. It is not biodegradable in the usual organic-material sense, but it is inert and not expected to bioaccumulate.
Is CI 77491 [1] COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic as an allowed mineral colorant when cosmetic-grade purity requirements are met. Its Green Chemistry profile is strongest on stability and low reactivity, and weaker on renewability because it is an inorganic mineral material.
How does CI 77491 [1] work chemically?
The molecule exists as an insoluble crystalline inorganic oxide lattice, with shade, opacity, and dispersibility influenced by particle size, crystal form, and any surface treatment. It is stable across normal cosmetic pH ranges, compatible with anhydrous and emulsion systems, and is typically used at low levels for tinting or higher levels in color cosmetics where coverage is needed.
Last updated 2026-05-13