Restricted

Dimethyl Oxalate

A cosmetic ingredient used as chelating, plasticiser, solvent in skincare, haircare, and personal-care products sold in the European Union.

What is it?

Dimethyl oxalate

What does it do?

Dimethyl Oxalate is listed in the EU cosmetic ingredient inventory with the following declared functions:

  • Chelating

    binds metal ions to prevent them from interfering with formulation stability

  • Plasticiser

    adds flexibility to film-forming polymers, e.g. in nail polish or mascara

  • Solvent

    dissolves other ingredients into a uniform liquid phase

EU regulatory status

This ingredient is restricted in the European Union.

Dimethyl Oxalate is listed under Annex III of EU Cosmetics Regulation 1223/2009 (entry 3). It is permitted only under specific conditions, concentration limits, or in particular product types.

Frequently asked questions

What is Dimethyl Oxalate?

Dimethyl Oxalate is a cosmetic ingredient catalogued in the EU CosIng database. Dimethyl oxalate

Is Dimethyl Oxalate allowed in cosmetics in the EU?

Only with restrictions. Dimethyl Oxalate is permitted in EU cosmetics only under specific conditions defined in Annex III of Regulation 1223/2009.

What does Dimethyl Oxalate do in cosmetic products?

Dimethyl Oxalate is declared in the EU cosmetic ingredient inventory with these functions: chelating, plasticiser, solvent.

What is the CAS number of Dimethyl Oxalate?

The CAS (Chemical Abstracts Service) number for Dimethyl Oxalate is 553-90-2.

Related ingredients

Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 15/10/2010