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Polymethylsilsesquioxane: K-beauty ingredient guide 폴리메틸실세스퀴옥산

⏱ 1 min read
Quick answer: The 'pore filter' effect in a jar, and the reason a Korean primer can make your nose look airbrushed in about four seconds. These are tiny hard spheres that sit on the surface and bounce light in all directions. Nothing is being treated. Wash it off and the pores are exactly as they were.

The 'pore filter' effect in a jar, and the reason a Korean primer can make your nose look airbrushed in about four seconds. These are tiny hard spheres that sit on the surface and bounce light in all directions. Nothing is being treated. Wash it off and the pores are exactly as they were.

What Polymethylsilsesquioxane does for your skin

Best for

🕳️ Pores & texture🪨 Rough & uneven texture🛢️ Oil control

🌌 Polymethylsilsesquioxane compatibility map

Tap any ingredient to open its guide. ━ pairs well · ┈ use with care.

Silica🪞Dimethicone🧫Niacinamide …🔮Polymethylsi…
🤰 Pregnancy: Generally considered fine — confirm with your doctor. · ⏰ Use: AM

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✍️ Written & reviewed by the KoreaPlus Editorial team — dermatologist-informed, cosmetic-science researched & source-cited. Last reviewed: 2026-08-23.

General educational information using cosmetic structure-function wording — not medical advice. Always patch-test new actives. © KoreaPlus.