Our database includes 1056 products that contain Polymethylsilsesquioxane.

You should know

What it is



Polymethylsilsesquioxane is a silicone used as a film forming agent.

When applied to the skin, this ingredient creates an invisible film on the surface. This film still allows oxygen to pass through, but prevents moisture from escaping. This can help condition and hydrate the skin. It also leaves a silky feel when applied.

Polymethylsilsesquioxane has not been shown to clog pores. It has been deemed safe to use up to 55%, but most cosmetics use much less.

If you have concerns about using this ingredient, we recommend speaking with a professional.

Polymethylsilsesquioxane is a rare cosmetic ingredient, with about 3.0% of the products in our database containing it.

Community Stats

32 people from our community have liked or disliked this ingredient.

Users who dislike it 💔

Often have the following skin types:

Sensitive Dry

Usually have one or more of the following skin concerns:

Redness • Sensitivity • Dryness • Fine Lines

Where it's used

Polymethylsilsesquioxane is most often found as ingredient number 14 within an ingredient list.

These are the categories of products that use Polymethylsilsesquioxane the most:

CosIng Data

  • CosIng ID: 79017
  • EC #:  -
  • All Functions: Opa CI Fying
What is CosIng?

CosIng is the European Commission database for information on cosmetic substances and ingredients.

SkinSort uses CosIng to source some of it's data on ingredient names and functions.