ISOEUGENOL

Allergen CAS: 97-54-1CosIng #34653

ISOEUGENOL is identified as a fragrance allergen subject to mandatory label declaration under Regulation (EC) No 1223/2009.

Regulatory status as of 2026-08-28 (per the CosIng database).

About the ingredient

Phenol, 2-methoxy-4-(1-propenyl)-

EU regulatory status

Annex of Regulation (EC) No 1223/2009: III/73

Source: the European Commission's official CosIng database and Regulation (EC) No 1223/2009 of the European Parliament and of the Council on cosmetic products. How we assess ingredients — full methodology.

Last updated:

Functions in cosmetics

Frequently asked questions

  • Is ISOEUGENOL safe in cosmetics?

    ISOEUGENOL is one of the 26 EU fragrance allergens whose presence must be declared on the label when its concentration exceeds 0.001% in leave-on products or 0.01% in rinse-off products.

  • In which annex of Regulation 1223/2009 is ISOEUGENOL listed?

    ISOEUGENOL is listed under reference III/73 in the annexes of Regulation (EC) No 1223/2009 on cosmetic products. The first part (Roman numeral) indicates the annex: II – prohibited substances, III – substances restricted by conditions, IV – permitted colorants, V – permitted preservatives, VI – permitted UV filters.

  • What functions does ISOEUGENOL perform in cosmetics?

    According to the European Commission's CosIng database, ISOEUGENOL performs the following functions in cosmetics: FLAVOURING, PERFUMING. Functions are defined in the CosIng glossary and describe the technological role of a substance in the finished product.

  • Are there Safety Gate alerts concerning ISOEUGENOL?

    We found 2 recent alerts in the EU Safety Gate database in which ISOEUGENOL appears in the risk description or on the ingredient list of a recalled cosmetic. The full list and details of each alert are below in the Safety Gate alerts section.

Safety Gate alerts mentioning this ingredient

We found 2 recent EU Safety Gate alerts that mention ISOEUGENOL in the hazard description or ingredient list.

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