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PEG-40

Description

PEG-40, also known as polyethylene glycol 40, is a widely used synthetic polymer in skincare and cosmetic formulations. This versatile ingredient functions primarily as an emulsifier, solubilizer, and humectant. Its molecular structure consists of repeating ethylene oxide units, resulting in a water-soluble compound with excellent hydrating properties.

In skincare products, PEG-40 plays a crucial role in enhancing texture and stability. It effectively binds water and oil-based ingredients, creating smooth, uniform formulations. This property makes it particularly valuable in cleansers, moisturizers, and serums, where it helps to evenly distribute active ingredients throughout the product.

PEG-40 also acts as a penetration enhancer, facilitating the absorption of other beneficial ingredients into the skin. Its humectant properties help to draw moisture from the environment to the skin's surface, promoting hydration and potentially improving skin barrier function.

While generally considered safe for topical use, individuals with sensitive skin should perform patch tests before widespread application. PEG-40's efficacy in formulations has made it a staple ingredient in many skincare products, contributing to their overall performance and user experience.