Iron Oxides (C.I.77492 ●
TL;DR. This ingredient is an inorganic colorant used to give formulas a yellow tone and adjust shade in makeup, tinted sunscreen, and complexion products. It also contributes opacity and coverage when blended with other mineral pigments.
What does Iron Oxides (C.I.77492 do in a cosmetic formula?
This ingredient is an inorganic colorant used to give formulas a yellow tone and adjust shade in makeup, tinted sunscreen, and complexion products. It also contributes opacity and coverage when blended with other mineral pigments.
Is Iron Oxides (C.I.77492 clean?
It is broadly accepted in clean-beauty frameworks because it is inert, low-irritation, and not a common allergen. The main clean-standard focus is cosmetic-grade purity, especially tight limits on trace heavy metals and other mineral impurities.
Is Iron Oxides (C.I.77492 sustainable?
It is typically produced from abundant mineral feedstocks or by controlled synthesis, which helps standardize purity and color. It is not biodegradable in the organic sense, but it is inorganic, non-volatile, and not associated with bioaccumulation in normal cosmetic use; mining and energy inputs are the main footprint considerations.
Is Iron Oxides (C.I.77492 COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic when cosmetic-grade purity and color-additive requirements are met. From a Green Chemistry lens, it scores well for stability, low reactivity, and abundant mineral sourcing, though it is not renewable and does not biodegrade like plant-derived organics.
How does Iron Oxides (C.I.77492 work chemically?
This material is an insoluble inorganic pigment lattice built from metal cations with oxygen and hydroxide anions, which gives it strong color stability and very low solubility in water or oils. Typical use can range from trace shade-adjustment levels to several percent in color cosmetics, and it is stable across normal cosmetic pH, heat, and light but needs good dispersion to prevent settling or streaking.
Last updated 2026-05-14