Cosmetic ingredient (INCI)
Polymethylsilsesquioxane
Used in cosmetic products as opacifying. Polymer formed by hydrolysis and condensation of methyltrimethoxysilane.
The chemical behind this ingredient
Structure, properties, safety data and price information live on the chemical page.
This ingredient is not linked to a single chemical in our database, which is common for blends, extracts and polymers. Post a buy request with the INCI name and suppliers will quote.
Frequently asked questions
What is Polymethylsilsesquioxane used for in cosmetics?
Polymethylsilsesquioxane is used in cosmetic products as opacifying. Polymer formed by hydrolysis and condensation of methyltrimethoxysilane.
Is Polymethylsilsesquioxane restricted in cosmetics in the EU?
No EU restriction annex is recorded for Polymethylsilsesquioxane in our records. Rules change and differ by market, so always check the current regulation before you formulate.
What is the CAS number of Polymethylsilsesquioxane?
Polymethylsilsesquioxane is listed with CAS number 68554-70-1.