Yellow Iron Oxide ●
TL;DR. This ingredient is an insoluble mineral colorant used to give formulas an opaque it tone and adjust shade in complexion products, soaps, and color cosmetics. It also adds opacity because it disperses as solid particles rather than dissolving.
What does Yellow Iron Oxide do in a cosmetic formula?
This ingredient is an insoluble mineral colorant used to give formulas an opaque it tone and adjust shade in complexion products, soaps, and color cosmetics. It also adds opacity because it disperses as solid particles rather than dissolving.
Is Yellow Iron Oxide clean?
It is generally well tolerated because it is insoluble, non-volatile, and not a common sensitizer. Clean-standard attention mainly centers on cosmetic-grade purity, trace heavy-metal limits, and inhalation exposure in loose powders.
Is Yellow Iron Oxide sustainable?
This material is mineral-based and typically manufactured or refined to cosmetic purity, not sourced from renewable agriculture. It is not biodegradable in the organic-chemistry sense, but it is inert, stable, and not associated with bioaccumulation concerns at cosmetic use levels.
Is Yellow Iron Oxide COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic as an allowed mineral colorant when purity specifications are met. Its Green Chemistry fit is solid but not perfect, with good stability and low reactivity, balanced by non-renewable sourcing and mineral-processing inputs.
How does Yellow Iron Oxide work chemically?
The material consists of insoluble hydrated metal-oxygen lattice particles, with color and opacity coming from selective light absorption and scattering. Typical use is about 0.1–5% for tint adjustment and can be higher in makeup, and it remains stable across normal cosmetic pH when well dispersed with suitable milling or wetting agents.
Last updated 2026-05-13