Ci 77491/Iron Oxides ●
TL;DR. This ingredient is a mineral colorant used to create red, rust, terracotta, brown, and beige tones in makeup, complexion products, and tinted skin care. It also adds opacity and helps balance shade undertones.
What does Ci 77491/Iron Oxides do in a cosmetic formula?
This ingredient is a mineral colorant used to create red, rust, terracotta, brown, and beige tones in makeup, complexion products, and tinted skin care. It also adds opacity and helps balance shade undertones.
Is Ci 77491/Iron Oxides clean?
It is generally well tolerated on skin and has low allergy potential because it is insoluble and non-reactive in finished formulas. Clean standards typically accept it, with attention to regulated purity limits for trace heavy metals.
Is Ci 77491/Iron Oxides sustainable?
This material may be mined or manufactured from mineral feedstocks, so its footprint depends on extraction, purification, and energy use. It is inorganic and not biodegradable, but it is also stable, insoluble, and not associated with bioaccumulation concerns in normal cosmetic use.
Is Ci 77491/Iron Oxides COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic when it meets the standard’s mineral colorant and purity requirements. From a Green Chemistry view, it is not renewable, but it is durable, inert, low-reactivity, and compatible with simple mineral processing routes.
How does Ci 77491/Iron Oxides work chemically?
This compound is an inorganic lattice made from iron and oxygen, with particle size and surface treatment controlling shade strength, dispersibility, and opacity. It is stable across typical cosmetic pH ranges, does not oxidize like organic oils, and is commonly dispersed into oils, waxes, silicones, or water phases with wetting agents for even color payoff.
Last updated 2026-05-13