Polyoctylsilsesquioxane Silicate
A cosmetic ingredient used as absorbent, anticaking, emulsion stabilising in skincare, haircare, and personal-care products sold in the European Union.
What is it?
Polyoctylsilsesquioxane Silicate is the polymeric silicone resin that conforms generally to the formula:
What does it do?
Polyoctylsilsesquioxane Silicate is listed in the EU cosmetic ingredient inventory with the following declared functions:
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Absorbent
takes up water-based or oil-based substances
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Anticaking
prevents powders from clumping or caking, keeping them free-flowing
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Emulsion stabilising
stabilises emulsions of oil and water, preventing separation over time
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Slip modifier
alters how a product spreads and feels on skin — typically making it glide more smoothly
EU regulatory status
Polyoctylsilsesquioxane 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 Polyoctylsilsesquioxane Silicate?
Polyoctylsilsesquioxane Silicate is a cosmetic ingredient catalogued in the EU CosIng database. Polyoctylsilsesquioxane Silicate is the polymeric silicone resin that conforms generally to the formula:
Is Polyoctylsilsesquioxane Silicate allowed in cosmetics in the EU?
Yes. Polyoctylsilsesquioxane Silicate is allowed for use in cosmetic products in the EU under Regulation 1223/2009.
What does Polyoctylsilsesquioxane Silicate do in cosmetic products?
Polyoctylsilsesquioxane Silicate is declared in the EU cosmetic ingredient inventory with these functions: absorbent, anticaking, emulsion stabilising, slip modifier.
Related ingredients
Source: EU CosIng database (European Commission). This page is derived from public-sector information published by the European Commission. · Last updated: 07/07/2020