Using this ETUDE HOUSE eye makeup maker is super easy. First, pick your desired color from the 2 - color set. Then, use the applicator to apply the makeup in just 2 steps. For best results, make sure your eyelids are clean and dry before application. After use, keep the product in a cool, dry place. Don't let it get too hot or wet as it might affect the quality. And always remember to close the cap tightly to prevent the makeup from drying out.