What is it?

Alpha-isomethyl ionone, with the chemical formula C14H22O, belongs to the group of Monoterpenes. It is a colourless liquid and a synthetic compound.

What are the effects?

This substance belongs to the groups:

The Swedish Society for Nature Conservation (SSNC) list Alpha-isomethyl ionone as a substance causing allergies.

The European Chemicals Agency (ECHA) identifies alpha-isomethyl ionone as a substance that is “toxic to aquatic life with long lasting effects.”

Alpha-isomethyl ionone is restricted for use in cosmetic products in the EU by CosIng. CosIng is the European Commission database for information on cosmetic substances and ingredients.

How is it used?

Alpha-isomethyl ionone is used in a wide variety of cosmetic* and household products where it mainly functions as a fragrance ingredient. It is sometimes also used as a biocide, working as a disinfectant or pest control in product. The substance is for example found in hair care products, moisturizers, bubble baths, after shaves creams, air care products, perfumes and fragrances, polishes and waxes and makeup.

We use the European Commissions definition of Cosmetics:
“Cosmetics range from everyday hygiene products such as soap, shampoo, deodorant, and toothpaste to luxury beauty items including perfumes and makeup”.

Read about the other ingredients.


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