1,2-Hexanediol: K-beauty ingredient guide 1,2-헥산다이올
⏱ 1 min read
⚡ Quick answer: The reason so many Korean products can print 무방부제 (mubangbuje, preservative-free) on the box. 1,2-Hexanediol is a solvent and humectant that also makes life difficult for microbes, so it is not classified as a preservative even though it is doing preservative work. Honest ingredient, slightly dishonest marketing.
The reason so many Korean products can print 무방부제 (mubangbuje, preservative-free) on the box. 1,2-Hexanediol is a solvent and humectant that also makes life difficult for microbes, so it is not classified as a preservative even though it is doing preservative work. Honest ingredient, slightly dishonest marketing.
What 1,2-Hexanediol does for your skin
- Adds light hydration while helping keep a formula stable
- Lets brands build gentler, lower-load preservative systems
Best for
🌌 1,2-Hexanediol compatibility map
Tap any ingredient to open its guide. ━ pairs well · ┈ use with care.
🤰 Pregnancy: Generally considered fine — confirm with your doctor. · ⏰ Use: BOTH
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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.