Regulatory Status
For full compliance data across 55 jurisdictions, use the Substance Compliance tool.
Safety Data
Calculate MoS for your specific formulation with the MoS Calculator.
Expert Verdict
Classified as a skin sensitizer/allergen; one of the most frequently reported fragrance allergens in dermatological patch testing. Can cause allergic contact dermatitis in sensitized individuals. Violet/iris/woody scent profile; widely used in perfumery as an orris/violet note; the "isomers" designation covers multiple stereoisomeric forms with slightly different olfactory profiles
Regulatory Flags
Frequently Asked Questions
Is Methyl Alpha-Ionone Isomers safe in cosmetics?
Classified as a skin sensitizer/allergen; one of the most frequently reported fragrance allergens in dermatological patch testing. Can cause allergic contact dermatitis in sensitized individuals. Violet/iris/woody scent profile; widely used in perfumery as an orris/violet note; the "isomers" designation covers multiple stereoisomeric forms with slightly different olfactory profiles The EU classifies Methyl Alpha-Ionone Isomers as "restricted". Safety rating: MODERATE.
Is Methyl Alpha-Ionone Isomers allowed in the EU?
Methyl Alpha-Ionone Isomers EU regulatory status: restricted. This is based on EU Regulation 1223/2009 and its amendments.
What does Methyl Alpha-Ionone Isomers do in cosmetics?
Methyl Alpha-Ionone Isomers functions as: Fragrance ingredient. It is classified as a cosmetic ingredient in our database. CAS number: Mixture of isomers (individual isomers include CAS 127-51-5 for alpha-isomethyl ionone).
What is the Margin of Safety for Methyl Alpha-Ionone Isomers?
not established The Margin of Safety (MoS) is calculated using SCCS methodology. A MoS above 100 is generally considered safe. Use the MoS Calculator tool to calculate MoS for your specific formulation and product category.
Compliance Tools
Check Methyl Alpha-Ionone Isomers compliance across multiple jurisdictions:
Related Ingredients
Is Methyl Alpha-Ionone Isomers in Your Products?
Scan any product label with Piro โ our free ingredient scanner. Point your camera at the ingredients list and get instant safety scores for every ingredient.
Try Piro Free โAnalyze Your Full Ingredient List
Paste any INCI list into the Decoder for instant safety analysis, or calculate the Margin of Safety for Methyl Alpha-Ionone Isomers in your formulation.