Polyurethane-25
A cosmetic ingredient used as binding, hair waving or straightening, skin conditioning in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Polyurethane-25 is a complex polymer formed by the reaction of dihydroxypolyoxobutylene (degree of polymerization 12-30), dimethylol propionic acid, meta-tetramethylenexylenediisocyanate, isophoronediisocyanate and trimethoylpropane. The prepolymer is neutralized with triethylamine and chain extended with C1-8 alkyl diamine
What does it do?
Polyurethane-25 is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Binding
holds the components of a formulation together, especially in pressed powders and compact makeup
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Hair waving or straightening
permanently changes the shape of hair through chemical reduction and re-oxidation of the hair's disulfide bonds
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Skin conditioning
improves the appearance, feel, and condition of skin
EU regulatory status
Polyurethane-25 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 Polyurethane-25?
Polyurethane-25 is a cosmetic ingredient catalogued in the EU CosIng database. Polyurethane-25 is a complex polymer formed by the reaction of dihydroxypolyoxobutylene (degree of polymerization 12-30), dimethylol propionic acid, meta-tetramethylenexylenediisocyanate, isophoronediisocyanate and trimethoylpropane. The prepolymer is neutralized with triethylamine and chain extended with C1-8 alkyl diamine
Is Polyurethane-25 allowed in cosmetics in the EU?
Yes. Polyurethane-25 is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Polyurethane-25 do in cosmetic products?
Polyurethane-25 is declared in the EU cosmetic ingredient inventory with these functions: binding, hair waving or straightening, skin conditioning.
What is the CAS number of Polyurethane-25?
The CAS (Chemical Abstracts Service) number for Polyurethane-25 is -.
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