Tris(Di-T-Butylphenyl) Phosphite
A cosmetic ingredient used as antioxidant in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Tris(Di-t-Butylphenyl) Phosphite is the organic compound.
What does it do?
Tris(Di-T-Butylphenyl) Phosphite is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Antioxidant
neutralises free radicals to slow oxidative damage to the formulation or skin
EU regulatory status
Tris(Di-T-Butylphenyl) Phosphite 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 Tris(Di-T-Butylphenyl) Phosphite?
Tris(Di-T-Butylphenyl) Phosphite is a cosmetic ingredient catalogued in the EU CosIng database. Tris(Di-t-Butylphenyl) Phosphite is the organic compound.
Is Tris(Di-T-Butylphenyl) Phosphite allowed in cosmetics in the EU?
Yes. Tris(Di-T-Butylphenyl) Phosphite is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Tris(Di-T-Butylphenyl) Phosphite do in cosmetic products?
Tris(Di-T-Butylphenyl) Phosphite is declared in the EU cosmetic ingredient inventory with these functions: antioxidant.
What is the CAS number of Tris(Di-T-Butylphenyl) Phosphite?
The CAS (Chemical Abstracts Service) number for Tris(Di-T-Butylphenyl) Phosphite is 31570-04-4.
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Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 28/05/2026