Alpha-Isomethyl Ionone
Caution
Official INCI name
A powdery, violet-like scent ingredient and listed fragrance allergen.
What it does
Fragrance. Added for scent: perfume blends, essential oils and aroma chemicals.
Worth knowing
A known fragrance allergen — a common cause of contact allergy, which is why EU rules require it to be named on the label.
“Alpha-Isomethyl Ionone” is its name in the EU glossary of common ingredient names (no. 1476), the names labels in the EU must use. © European Union, EUR-Lex.