Polymethylsilsesquioxane

Polymethylsilsesquioxane is a cosmetic ingredient used as an opacifying agent. It appears in about 2% of cosmetic products in our 90,000+ product dataset. It carries no restriction under the EU Cosmetics Regulation annexes.

INCI namePOLYMETHYLSILSESQUIOXANE
FunctionOPACIFYING
CAS number68554-70-1
Prevalence1,874 products (2.02% of dataset)
Most used inSkincare
EU statusNo annex restriction
Monthly searches590

Used in

Sunscreens 30.2%General Moisturizers 8.5%Foundations 7.6%Face Primers 5.4%Setting Spray & Powders 4.8%Serums 4.4%

Frequently asked

What does Polymethylsilsesquioxane do in skincare?
Polymethylsilsesquioxane functions as an opacifying agent in cosmetic formulas.
What products contain Polymethylsilsesquioxane?
It is most commonly found in Skincare products, especially sunscreens (30.2% of its uses).

Manufacturers with experience using Polymethylsilsesquioxane

Match with vetted US contract manufacturers that have hands-on experience formulating with this ingredient.