ALPHA-ISOMETHYL IONONE
3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one
ALPHA-ISOMETHYL IONONE is listed in Annex III and may only be used under the conditions shown in this record.
Record details
Other restrictions
The presence of the substance must be indicated in the list of ingredients referred to in Article 19(1)g when its concentration exceeds:
- 0.001% in leave-on products
- 0.01% in rinse-off products
INCI glossary name
ALPHA-ISOMETHYL IONONE
Chemical name
3-Methyl-4-(2,6,6-trimethyl-2-cyclohexen-1-yl)-3-buten-2-one
Regulatory information
Regulation
(EC) 2009/1223
SCCS opinions
- Opinion concerning Essential Oils
- Opinion concerning Fragrance Allergy in Consumers - A Review of the Problem - Analysis of the need for appropriate Consumer Information and Identification of Consumer Allergens
- Opinion concerning the Interim Position on Fragrance Allergy
- Memorandum on the SCCNFP Opinion concerning Fragrance Allergy
Identified ingredients
Key data
Inventory links for ALPHA-ISOMETHYL IONONE
METHYL IONONES
Related records for ALPHA-ISOMETHYL IONONE
Direct matches are limited for this record, so nearby entries from Annex III are shown as well.
Limonene
EVERNIA FURFURACEA EXTRACT
Citronellol
What Annex III means for ALPHA-ISOMETHYL IONONE
ALPHA-ISOMETHYL IONONE is a restricted substance under Annex III of EU Cosmetics Regulation 1223/2009. Its use in cosmetics is only permitted under the specific conditions set out in the entry above, including applicable concentration limits, product type restrictions and required warning statements.
When including this substance in a formulation, all conditions — maximum concentration, product scope and warning labels — must be met simultaneously. Compliance with one condition does not override the others.
This record is linked to 2 CosIng inventory ingredients for name and identifier cross-reference. The page also surfaces 12 related annex records with overlapping identifiers, annex logic or naming patterns.
Compliance checklist
- Document conditions of use in the Product Information File (PIF).
Frequently asked questions
Source note for Annex III record ALPHA-ISOMETHYL IONONE
This page summarizes one Annex III record for ALPHA-ISOMETHYL IONONE from public European Commission cosmetic materials and adds linked inventory or identifier matches when available.
Use this record page to review Annex III conditions for ALPHA-ISOMETHYL IONONE, but confirm any final regulatory decision against the current official annex wording and source files.
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