CI 77491/IronOxides ●
TL;DR. This ingredient is a mineral pigment used to give cosmetics a red to reddish-brown color and to fine-tune shades in complexion products, lip color, eye products, and soaps. It is insoluble, so it functions as a dispersed solid rather than a dissolved dye.
What does CI 77491/IronOxides do in a cosmetic formula?
This ingredient is a mineral pigment used to give cosmetics a red to reddish-brown color and to fine-tune shades in complexion products, lip color, eye products, and soaps. It is insoluble, so it functions as a dispersed solid rather than a dissolved dye.
Is CI 77491/IronOxides clean?
It is broadly accepted in clean-beauty frameworks and is generally low in irritation and sensitization potential. The main quality issue is trace-metal purity, which reputable cosmetic-grade suppliers control through specification testing.
Is CI 77491/IronOxides sustainable?
It is typically made as a synthetic mineral pigment rather than mined, which improves shade consistency and can reduce trace-metal variability. As an inorganic solid it does not biodegrade, but it is inert, non-bioaccumulative, and used at controlled levels in finished products.
Is CI 77491/IronOxides COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic as an allowed mineral colorant when it meets purity and processing requirements. Its Green Chemistry fit is moderate to good, since the feedstock is not renewable, but the material is stable, water-insoluble, low-reactivity, and does not require solvent-heavy performance in use.
How does CI 77491/IronOxides work chemically?
This material is an inorganic crystalline lattice made from metal and oxygen atoms, with particle size and surface treatment affecting color strength, opacity, and dispersion. Typical use is about 0.1; 5% for shade adjustment and higher in color cosmetics, and it is highly stable to heat, light, and normal cosmetic pH ranges.
Last updated 2026-08-29