IRON OXIDES . B ●
TL;DR. This ingredient is used as an inorganic colorant, giving cosmetics opaque red, yellow, brown, or black tones. It is common in complexion products, eye makeup, lip color, and tinted skin care.
What does IRON OXIDES . B do in a cosmetic formula?
This ingredient is used as an inorganic colorant, giving cosmetics opaque red, yellow, brown, or black tones. It is common in complexion products, eye makeup, lip color, and tinted skin care.
Is IRON OXIDES . B clean?
From a clean-beauty perspective, it is generally well tolerated and has low sensitization potential because it is inert and nonvolatile. The main quality focus is purity, especially compliance with limits for trace heavy metals.
Is IRON OXIDES . B sustainable?
This material is mineral-derived or nature-identical and is not biodegradable because it is inorganic. Its environmental profile is mainly tied to mining, purification, and manufacturing controls, while the finished material is highly stable and not bioaccumulative in the usual organic-chemical sense.
Is IRON OXIDES . B COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic standards when it meets approved colorant and purity requirements. Its Green Chemistry fit is mixed: it is stable, low-reactivity, and used efficiently, but it comes from nonrenewable mineral feedstocks and is not biodegradable.
How does IRON OXIDES . B work chemically?
This material is an inorganic mineral colorant made from metal and oxygen crystal lattices, with particle size, hydration state, and surface treatment influencing shade, opacity, and dispersibility. Typical use ranges from trace tinting below 1% to several percent in makeup, and it is stable across normal cosmetic pH, heat, and light; formulators mainly manage dispersion, settling, and agglomeration.
Last updated 2026-05-13