Coumarin
Natural aromatic compound with a fresh hay scent. Occurs in sweet clover and tonka beans, on the EU list of 26 allergens.
Evidence by route
Topical application
CWeak evidence. In vitro data, open-label studies, or expert consensus.
EU mandates cosmetic labeling and limits food use. Rarely causes primary irritation, but sensitizes the skin.
Tolerability and safety
Irritation potential
MediumAllergen risk
HighPregnancy
CautionSkin types
Suitable for
Use with caution
Frequently asked questions
Is Coumarin safe during pregnancy?
Coumarin should be used with caution during pregnancy. Consulting a dermatologist or OB-GYN is advisable.
What skin types is Coumarin for?
Coumarin suits: normal, dry, oily, combination. Use with caution in: sensitive.
Can Coumarin irritate the skin?
Coumarin has moderate irritation potential. Sensitive skin may show a transient reaction that usually settles with adaptation.
Can Coumarin cause an allergic reaction?
Coumarin has high allergen potential. Perform a patch test on the inner forearm 24 hours before facial application.