Kromer recommends washing just once a week and using dry shampoo in the meantime, like the Divi Dry Shampoo Spray ($26). These colors typically require bleaching the hair, which can make cuticles ...

However, if you constantly dye your hair lighter with bleach, it may cause dryness, damage, and split ends. So, while it's the easiest way to lift color and lighten strands, it's always a good ...