Polymethylsilsesquioxane

Polymethylsilsesquioxane is a cage-like silicone resin made of methyl-substituted siloxane units. In formulations it acts as a film former and texturizing powder, giving a silky feel, diffusing light, and toning down excess shine.
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Ingredient Snapshot

Overview
A silicone powder that gives skin a velvety, shine-controlled finish.
Category
Tone/Texture, Oil Control, Skin Conditioning
Type
Silicone

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

Provides a velvety touch and a softly perfected appearance while helping curb surface shine. Contributes to a lightweight, breathable feel on skin.

Uses In Skincare & Cosmetics

Used in mattifying primers, oil-control moisturizers, and setting powders for a smoother look. Also appears in sunscreens and blur sticks for a soft-matte effect.

Comedogenic Rating

This ingredient has a comedogenic rating of 0. It is considered non-comedogenic and has little to no likelihood of clogging pores.

Safety

Generally low risk for irritation and suitable for most skin types. Very sensitive or silicone-reactive users may notice mild dryness or transient irritation. No common regulatory limitations noted.

Is Polymethylsilsesquioxane a Good Ingredient?

Good rating due to its stable silicone resin structure that delivers soft-focus, oil control, and a lightweight feel with low irritation potential. Performance is consistent across many formats without notable reactivity.

Products with Polymethylsilsesquioxane

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