Iron Oxides \ Cl 77491\ ●
TL;DR. This ingredient is an inorganic colorant used to provide stable red, brown, or earthy pigment in makeup, sunscreens, and tinted skin care. It also contributes opacity and coverage in complexion products.
What does Iron Oxides \ Cl 77491\ do in a cosmetic formula?
This ingredient is an inorganic colorant used to provide stable red, brown, or earthy pigment in makeup, sunscreens, and tinted skin care. It also contributes opacity and coverage in complexion products.
Is Iron Oxides \ Cl 77491\ clean?
Clean-beauty frameworks generally accept this ingredient when cosmetic-grade purity limits for trace metals are met. It is inert, low-allergen, and rarely an irritation driver for most users.
Is Iron Oxides \ Cl 77491\ sustainable?
It is mineral-derived or synthesized from mineral feedstocks, so it is not renewable or biodegradable in the usual organic-chemistry sense. Sustainability considerations center on mining impacts, energy use, and trace-metal controls rather than aquatic bioaccumulation.
Is Iron Oxides \ Cl 77491\ COSMOS-approved?
It is permitted under COSMOS for natural and organic cosmetics as an allowed inorganic colorant when it meets purity specifications. Its Green Chemistry profile is solid for low reactivity, durability, and low user exposure concerns, with the main compromise being nonrenewable mineral sourcing.
How does Iron Oxides \ Cl 77491\ work chemically?
The molecule is an insoluble inorganic metal-oxygen lattice pigment with high photostability and very low chemical reactivity in finished formulas. Use levels vary widely, from below 1% for tinting to 10% or more in color cosmetics, and it is stable across typical cosmetic pH ranges but must be well dispersed for even color payoff.
Last updated 2026-05-14