Ethylhexyl Salicylate (Octisalate) vs Polysilicone-15: which Korean skincare ingredient?
Ethylhexyl Salicylate (Octisalate) vs Polysilicone-15: Ethylhexyl Salicylate (Octisalate) leans toward sun damage & photoageing, while Polysilicone-15 targets sun damage & photoageing. Can you use both? Yes — they layer well together.
| Ethylhexyl Salicylate (Octisalate) | Polysilicone-15 | |
|---|---|---|
| What it is | One of the mildest organic filters in common use, capped at 5% in most markets, and almost never working alone. Like homosalate it is partly a solvent: it keeps a filter blend liquid and spreadable. Despite the name it is not salicylic acid and does not exfoliate — a confusion worth clearing up on sight. | A UV filter attached to a silicone backbone, permitted in Korea and the EU but not in the United States — one small piece of why Korean sunscreens feel the way they do. It absorbs UVB, stays put on skin thanks to its size, and adds almost no weight. Not a UVA filter, so it always travels in company. |
| Best for | Sun damage & photoageing | Sun damage & photoageing |
| When to use | AM | AM |
Which should you choose?
Choose Ethylhexyl Salicylate (Octisalate) if your priority is Sun damage & photoageing; choose Polysilicone-15 for Sun damage & photoageing. Many Korean routines use both — yes — they layer well together.
Ethylhexyl Salicylate (Octisalate) guide →Polysilicone-15 guide →
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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.