TERPINOLENE

Allergen CAS: 586-62-9CosIng #41511

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

Regulatory data checked on 2026-09-05. The legal status follows Regulation (EC) No 1223/2009 and its annexes; the substance is identified from the European Commission's CosIng database.

About the ingredient

p-Mentha-1,4(8)-diene; 1-Methyl-4-isopropylidene-1-cyclohexene; Terpinene

EU regulatory status

Annex of Regulation (EC) No 1223/2009: III/133

p-Mentha-1,4(8)- diene

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:

New labelling obligation

TERPINOLENE is on the extended fragrance-allergen list of Regulation (EU) 2023/1545. Products placed on the market after 31 July 2026 must name it on the label when its concentration exceeds 0.001% (leave-on) or 0.01% (rinse-off).

The full list of new allergens and the deadlines — read the article

Functions in cosmetics

Frequently asked questions

  • Is TERPINOLENE safe in cosmetics?

    TERPINOLENE is a fragrance allergen that must be named in the ingredient list once it exceeds 0.001% in leave-on products or 0.01% in rinse-off products. Regulation (EU) 2023/1545 extended this labelling duty well beyond the original 26 substances.

  • In which annex of Regulation 1223/2009 does TERPINOLENE fall?

    TERPINOLENE falls under reference III/133 in the annexes of Regulation (EC) No 1223/2009 on cosmetic products. An annex entry may name a substance directly or cover it as part of a broader category. 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 TERPINOLENE perform in cosmetics?

    According to the European Commission's CosIng database, TERPINOLENE performs the following functions in cosmetics: 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 TERPINOLENE?

    Our copy of the EU Safety Gate database currently contains no alerts linking TERPINOLENE to a cosmetic recall. The database is refreshed regularly from the European Commission's official Safety Gate system.

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