Steardimonium Propyl/methacryloylpropyl Silsesquioxane Silicate
A cosmetic ingredient used as antimicrobial, film forming, surfactant - solubilizing in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Steardimonium Propyl/Methacryloylpropyl Silsesquioxane Silicate is a complex siloxane polymer formed by the hydrolysis and condensation of Tetraethyl Orthosilicate, methacryloyl propyltriethoxysilane, and Triethoxysilylpropyl Steardimonium Chloride.
What does it do?
Steardimonium Propyl/methacryloylpropyl Silsesquioxane Silicate is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Antimicrobial
kills or inhibits the growth of microorganisms
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Film forming
forms a thin continuous film on skin, hair, or nails — used in long-wear makeup, sunscreens, and hairsprays
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Surfactant - solubilizing
surfactant that dissolves small amounts of oils into a clear water-based formulation
EU regulatory status
Steardimonium Propyl/methacryloylpropyl Silsesquioxane Silicate 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 Steardimonium Propyl/methacryloylpropyl Silsesquioxane Silicate?
Steardimonium Propyl/methacryloylpropyl Silsesquioxane Silicate is a cosmetic ingredient catalogued in the EU CosIng database. Steardimonium Propyl/Methacryloylpropyl Silsesquioxane Silicate is a complex siloxane polymer formed by the hydrolysis and condensation of Tetraethyl Orthosilicate, methacryloyl propyltriethoxysilane, and Triethoxysilylpropyl Steardimonium Chloride.
Is Steardimonium Propyl/methacryloylpropyl Silsesquioxane Silicate allowed in cosmetics in the EU?
Yes. Steardimonium Propyl/methacryloylpropyl Silsesquioxane Silicate is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Steardimonium Propyl/methacryloylpropyl Silsesquioxane Silicate do in cosmetic products?
Steardimonium Propyl/methacryloylpropyl Silsesquioxane Silicate is declared in the EU cosmetic ingredient inventory with these functions: antimicrobial, film forming, surfactant - solubilizing.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 23/05/2023