Iron
Iron Oxide
Also known as: iron
IRO
1/10
Concern level
Low concern
Iron is a mineral that can be used in cosmetics primarily as a colorant. Iron oxides are stable and non-toxic, providing pigmentation in formulations.
Chemical Properties
Molecular Weight
159.69 g/mol pH Range
6.00 - 8.00Typical Concentration
0.10% - 10.00%CAS Number: 1309-37-1
Skin Type Compatibility
dry skin8/10
oily skin8/10
sensitive skin5/10
acne prone6/10
mature skin7/10
normal skin8/10
Risks & Warnings
Generally safe; however, high concentrations may cause discoloration or staining.
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