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Ingredient

Alpha-Isomethyl Ionone

A violet-like fragrance component required to be named on the label above a threshold.

What it does

  • Fragrance

    Gives the product its scent, or masks a base odour.

What we tell people

  • Contains fragrance

    This product contains fragrance. Fragrance is one of the more common causes of contact irritation, which is why many people prefer to avoid it.

    Why: Fragrance is the most frequently cited preference in cosmetics, and "parfum" on a label can cover many undisclosed components.

  • Declared fragrance allergen

    This product declares one or more of the fragrance substances that EU labelling rules require to be named individually.

    Why: Regulation (EC) No 1223/2009 requires certain fragrance substances to be named on the label above a threshold. Their presence is a labelling fact, not a prediction that anybody will react.

Regulatory position

Tied to a named instrument rather than summarised. Presence in an ingredient glossary is not evidence that a substance is permitted at any concentration or for any purpose.

  • EU · restricted

    Regulation (EC) No 1223/2009, Annex III — fragrance substances subject to individual labelling

    Must be named individually on the label above 0.001% in leave-on products and 0.01% in rinse-off products.

Reference

In our catalogue
62 products

Ingredient reference data © European Union, 1995–2026, reused under CC-BY 4.0. Plain explanations are BeautySignal's own. This is information, not medical advice. How we source this.

Alpha-Isomethyl Ionone · BeautySignal