The safety has been assessed by the Cosmetic Ingredient Review (CIR) Expert Panel. The panel concluded that this ingredient is unsafe in cosmetic formulations in the present practices of use and concentration.
Hydrogenated Styrene/Isoprene Copolymer is a synthetic polymer made by combining two monomers, styrene and isoprene, through a process called hydrogenation. In simple terms, it is a chemically modified rubber-like substance that is used in cosmetic formulations.This copolymer is widely used in cosmetics due to its versatile properties, such as film-forming, thickening, and emulsifying abilities. It helps improve the texture, stability, and overall performance of various cosmetic products. Some common use cases include:1. Makeup products: It is used in foundations, eyeliners, and mascaras to provide a smooth, even application and long-lasting wear. The film-forming property helps the makeup adhere to the skin and resist smudging or fading.2. Skincare products: In creams, lotions, and serums, it acts as a thickening agent, providing a rich and luxurious texture. It also helps to stabilize the formulation, ensuring that the product maintains its consistency over time.3. Hair care products: It is used in hair styling products like gels, waxes, and pomades to provide hold and control. The copolymer forms a film on the hair, helping to keep the hairstyle in place without making the hair feel sticky or heavy.4. Sunscreen products: It can be used as an emulsifier in sunscreen formulations, helping to create a stable and uniform mixture of the active ingredients and other components. This ensures even coverage and protection from the sun's harmful rays.Overall, Hydrogenated Styrene/Isoprene Copolymer is a versatile and valuable ingredient in cosmetic formulations, contributing to the performance, texture, and stability of various products.