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POLYESTER-4

Description

Polyester-4 is a synthetic polymer widely used in cosmetic and personal care formulations as a film-forming agent and viscosity controller. This versatile ingredient belongs to the family of polyesters, which are condensation polymers derived from polyhydric alcohols and polybasic acids. In skincare and haircare products, Polyester-4 functions primarily as a texture enhancer and stabilizer.

When incorporated into formulations, Polyester-4 creates a thin, flexible film on the skin or hair surface, providing a smooth feel and helping to lock in moisture. This film-forming property also aids in improving the wear and longevity of makeup products. As a viscosity controller, it helps maintain the desired consistency of creams, lotions, and gels, preventing separation of ingredients and ensuring a uniform application.

Polyester-4 is compatible with a wide range of cosmetic ingredients, making it a valuable component in various product types. It is particularly effective in water-resistant formulations, contributing to the durability of sunscreens and long-wearing makeup. While generally considered safe for topical use, as with any synthetic ingredient, some individuals may experience sensitivity. Product formulators should consider potential allergic reactions when incorporating Polyester-4 into their formulations.