Back to Ingredient Dictionary

PEG-180

Description

PEG-180 is a high molecular weight polyethylene glycol (PEG) polymer widely used in cosmetic and personal care formulations. This synthetic compound functions primarily as an emollient, humectant, and viscosity-controlling agent. With its long chain of ethylene oxide units, PEG-180 has exceptional water-binding properties, helping to maintain skin hydration and improve product texture.

In skincare formulations, PEG-180 acts as a moisture-retention agent, forming a protective barrier on the skin's surface to reduce transepidermal water loss. Its high molecular weight ensures that it remains on the skin's surface without penetrating deeper layers, making it suitable for sensitive skin types. PEG-180 also enhances the spreadability of products, contributing to a smooth, even application.

As a viscosity modifier, PEG-180 helps stabilize emulsions and suspensions, improving the overall consistency and shelf-life of cosmetic products. Its compatibility with various ingredients makes it versatile in formulations ranging from lotions and creams to serums and gels. While generally considered safe for topical use, individuals with compromised skin barriers should exercise caution, as higher molecular weight PEGs may potentially enhance the penetration of other ingredients.