Black Iron Oxide: What is this ingredient?
An inorganic iron oxide pigment used as a color additive in cosmetic formulas.
Black Iron Oxide
One-line definition
An inorganic iron oxide pigment used as a color additive in cosmetic formulas.
Key functions
An inorganic iron oxide pigment used as a color additive in cosmetic formulas.
Colorant
Skin response can vary by skin type and formula, so patch testing is recommended for sensitive skin.
TONYMOLY
makeup
Routine Guides • 2026-03-08