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Alpha-Isomethyl Ionone

A cosmetic ingredient used as perfuming, skin conditioning in skincare, haircare, and personal-care products sold in the European Union.

What is it?

3-Methyl-4-(2,6,6-trimethyl-2-cyclohexenyl)-3-buten-2-one; Methyl-gamma-ionone; gamma-Methylionone

What does it do?

Alpha-Isomethyl Ionone is listed in the EU cosmetic ingredient inventory with the following declared functions:

EU regulatory status

This ingredient is restricted in the European Union.

Alpha-Isomethyl Ionone is listed under Annex III of EU Cosmetics Regulation 1223/2009 (entry 90). It is permitted only under specific conditions, concentration limits, or in particular product types.

Frequently asked questions

What is Alpha-Isomethyl Ionone?

Alpha-Isomethyl Ionone is a cosmetic ingredient catalogued in the EU CosIng database. 3-Methyl-4-(2,6,6-trimethyl-2-cyclohexenyl)-3-buten-2-one; Methyl-gamma-ionone; gamma-Methylionone

Is Alpha-Isomethyl Ionone allowed in cosmetics in the EU?

Only with restrictions. Alpha-Isomethyl Ionone is permitted in EU cosmetics only under specific conditions defined in Annex III of Regulation 1223/2009.

What does Alpha-Isomethyl Ionone do in cosmetic products?

Alpha-Isomethyl Ionone is declared in the EU cosmetic ingredient inventory with these functions: perfuming, skin conditioning.

What is the CAS number of Alpha-Isomethyl Ionone?

The CAS (Chemical Abstracts Service) number for Alpha-Isomethyl Ionone is 127-51-5.

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Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 12/07/2019