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Iron Oxides

Best

Colouring Agent/Pigment

No known benefits

Iron Oxides description

Iron oxides are cosmetic pigments that originate from natural minerals and are considered both synthetic and mineral when refined. Used to tint sunscreens, create complexion-enhancing makeup shades, and help protect skin from visible light.

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Iron Oxides references

  • Journal of Cosmetic Dermatology, February 2021, pages 532-537
  • Journal of Drugs in Dermatology, July 2020, pages 712-717
  • Journal of the American Academy of Dermatology, April 2020, ePublication
  • EFSA Journal, Volume 14, Issue 6, June 2016, ePublication

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings

Best

Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.

Good

Necessary to improve a formula's texture, stability, or penetration.

Average

Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.

Bad

There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.

Worst

May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.

unknown

We couldn't find this in our ingredient dictionary. We log all missing ingredients and make continuous updates.

Not rated

We have not yet rated this ingredient because we have not had a chance to review the research on it.