Synthetic ingredient with a violet and woody scent. On the EU list of 26 fragrance allergens.
Topical application
CWeak evidence. In vitro data, open-label studies, or expert consensus.
Often triggers contact allergy in people sensitive to fragrance. SCCS recommends concentration limits.
Irritation potential
MediumAllergen risk
HighPregnancy
CautionSuitable for
Use with caution
Alpha-Isomethyl Ionone should be used with caution during pregnancy. Consulting a dermatologist or OB-GYN is advisable.
Alpha-Isomethyl Ionone suits: normal, dry, oily, combination. Use with caution in: sensitive.
Alpha-Isomethyl Ionone has moderate irritation potential. Sensitive skin may show a transient reaction that usually settles with adaptation.
Alpha-Isomethyl Ionone has high allergen potential. Perform a patch test on the inner forearm 24 hours before facial application.
Synthetic ingredient with a violet and woody scent.
Published: · updated:
The INCI name is Alpha-Isomethyl Ionone. It may also appear as: Isomethyl Ionone.