Cosmadex
Allowed in EU

Trimethylolpropane

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

What is it?

2-Ethyl-2-Hydroxymethyl-1,3-Propanediol; 1,1,1-Tris(hydroxymethyl)propane; propylidynetrimethanol; TMP

What does it do?

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

  • Humectant

    draws moisture from the air or deeper skin layers to the surface, helping skin retain water

  • Solvent

    dissolves other ingredients into a uniform liquid phase

EU regulatory status

Trimethylolpropane is allowed for use in cosmetic products in the European Union under Regulation 1223/2009. It is not subject to a specific Annex restriction at the time of writing.

Frequently asked questions

What is Trimethylolpropane?

Trimethylolpropane is a cosmetic ingredient catalogued in the EU CosIng database. 2-Ethyl-2-Hydroxymethyl-1,3-Propanediol; 1,1,1-Tris(hydroxymethyl)propane; propylidynetrimethanol; TMP

Is Trimethylolpropane allowed in cosmetics in the EU?

Yes. Trimethylolpropane is allowed for use in cosmetic products in the EU under Regulation 1223/2009.

What does Trimethylolpropane do in cosmetic products?

Trimethylolpropane is declared in the EU cosmetic ingredient inventory with these functions: humectant, solvent.

What is the CAS number of Trimethylolpropane?

The CAS (Chemical Abstracts Service) number for Trimethylolpropane is 77-99-6.

Related ingredients

Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 21/11/2016