Polymethylsilsesquioxane

Polymethylsilsesquioxane is a spherical silicone powder that provides a silky, smooth feel to cosmetic products. It helps to blur the appearance of fine lines and pores by scattering light, and can also absorb excess oil, contributing to a matte finish.

BenefitModerate 1.5 / 4

Texture i1.5 / 4

Whether it can improve smoothness and surface texture — roughness, flaking, clogged pores, or unevenness. Exfoliating acids, retinoids, and smoothing moisturizers may score here.

Oil control i1.5 / 4

Whether it can reduce excess sebum, shine, or greasiness — absorbents, sebum-regulating ingredients, and some acne actives.

RiskVery low 0 / 4

Rated by SpottyLabs' ingredient methodology, independent of brands.

What it helps with

• Provides a soft-focus effect
• Reduces shine
• Improves product texture

Products with Polymethylsilsesquioxane

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Frequently asked questions

What is polymethylsilsesquioxane?

Polymethylsilsesquioxane is a silicone-based powder used in cosmetics to create a smooth texture and soft-focus effect on the skin.

Does polymethylsilsesquioxane clog pores?

Due to its inert nature and large molecular size, polymethylsilsesquioxane is generally considered non-comedogenic and unlikely to clog pores.