Loreal Hair Expertise Eversleek Reparative Smoothing Shampoo smoothes frizzy, unruly hair, improves texture and leaves hair sleek and manageable. Free of harsh sulfates and heavy silicones, the Eversleek Sulfate-Free Smoothing System uses natural oils to weightlessly smooth hair. Unlike ordinary smoothing shampoos with silicones that coat hair, Eversleek combines Argan, Sunflower, and Olive oils to penetrate the hair for 48-hour frizz control.