The basics 4K Longwear Schmix is a unique mixer and primer developed to sheer down 4K Longwear Creme and still maintain its longwear and hydroproof capability. The benefits You can now go barely-there translucent and also create silky foundations that last all day. The uses Schmix enables more application and blending time,  and once your custom blend dries, it lasts all day, is weightless, non greasy and comfortable to wear. The bottom line It creates a dewy finish that does not need powdering. This means that light is still able to pass through skin to give luminous gorgeous realistic skin finish.