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fragrance

Coumarin

Watch if sensitive·Strong evidence

A sweet, hay-like fragrance ingredient naturally found in tonka bean and lavender. It is one of the 26 EU-designated fragrance allergens and is also subject to an EU maximum concentration limit in finished cosmetic products.

Worth knowing

  • EU-labelled fragrance allergen
  • Known contact sensitizer for some
  • Restricted in the EU

Listed in EU cosmetics regulation Annex III with a maximum use concentration, and also on the 26-allergen labeling list because of documented contact sensitization.

Gentler alternatives

Questions

Is coumarin banned in cosmetics?
Coumarin is not banned outright, but the EU restricts its maximum concentration in finished cosmetic products and requires labeling as one of 26 fragrance allergens. It appears in products at levels the EU has deemed safe, but those with known fragrance sensitivities should check labels.
Can coumarin cause skin problems?
Coumarin is a documented fragrance allergen and can trigger contact dermatitis in sensitized people. If you develop rash, redness, or itching after using a product containing coumarin, it may indicate sensitization.

Products with Coumarin

References

Cosmetic information for general education, not medical advice. A verdict is a reading of the published evidence, never a guarantee for your skin: any ingredient can irritate someone, so patch test new products and see a professional if you react. Concern is graded on cited evidence, never on hazard-score lists. See how we score.