Terephthalic Acid
A cosmetic ingredient used as not reported in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Terephthalic Acid is the organic compound.
What does it do?
Terephthalic Acid is listed in the EU cosmetic ingredient inventory with the following declared functions:
-
Not reported
function not declared in the EU CosIng database — the substance is approved for cosmetic use, but no specific role has been categorised
EU regulatory status
Terephthalic Acid 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 Terephthalic Acid?
Terephthalic Acid is a cosmetic ingredient catalogued in the EU CosIng database. Terephthalic Acid is the organic compound.
Is Terephthalic Acid allowed in cosmetics in the EU?
Yes. Terephthalic Acid is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What is the CAS number of Terephthalic Acid?
The CAS (Chemical Abstracts Service) number for Terephthalic Acid is 100-21-0.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 30/04/2025