Ingredient Encyclopedia

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Discover what’s inside your skincare — from retinol to aloe vera — with clear guides on benefits, uses, and safety.

Ingredient Encyclopedia

Pentylene Glycol – Benefits, Side Effects & Uses

by ThankMeNow Editors on Sep 10, 2025
Pentylene Glycol is a high-performance diol (a liquid humectant) that serves as a cornerstone for "elegant" skincare formulations. Unlike glycerin, which can sometimes feel heavy or sticky, Pentylene Glycol provides a weightless, silky finish while effectively binding moisture to the skin. Its unique molecular structure makes it a dual-threat: it acts as a penetration enhancer, helping other active ingredients reach deeper into the skin, and as a preservative booster. By making the environment hostile for bacteria, it allows brands to use fewer traditional preservatives, making it a favorite for Sensitive-Skin and minimalist formulas.