Loreal Hair Expertise EverSleek Intense Smoothing Conditioner helps improve texture and leaves hair beautifully sleek and manageable. Free of harsh sulfates and heavy silicones, EverSleek Sulfate-Free Smoothing System with Argan, Sunflower and Olive oils, weightlessly smoothes hair for 48 hour frizz control. Unlike some silicones which can coat hair, these natural oils penetrate the hair while natural botanicals invigorate the senses.