Xanthan Gum in summer: how to adjust

Using Xanthan Gum in summer: the season brings heat, humidity, sweat and peak UV, so what changes is texture, frequency and what you layer around it — not usually whether you use it at all.

A fermentation-derived sugar polymer, the same one that thickens salad dressing. In skincare it gives body to toners and essences without oils, which suits the Korean preference for light textures. Used heavily it turns slimy and pills under sunscreen, so a formulator's restraint with xanthan gum is something you can feel.

What summer does to your skin

Heat, humidity, sweat and excess oil call for lightweight, fast-absorbing layers and a high, re-applied sunscreen.

How that changes Xanthan Gum

Summer rewards lighter textures and punishes anything occlusive. Strength of active matters less than whether it survives a humid day. Xanthan Gum works on its usual targets, and it is normally applied BOTH.

What to layer it with

☀️ Full summer guide →🌾 Xanthan Gum 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.