The Crazy Color semi-permanent pillar box red hair dye will be sure to re-light your fire! This iconic shade has stood the test of time as it was a part of our original collection from 1977. Fire is a vivid and bold shade that is reserved for the brave. To achieve optimal results, we recommend lightening your hair to a level 9 or 10 (blonde) before use. This product is also suitable for level 8 (light brown hair), however, results will only be tonal.