Extra maintenance is requiredwhen covering gray hair.Gray hair is often coarser, which makesit more resistant to deposited color.If you're looking for 100% opaquecoverage, use a permanent hair color.If you're concerned about a severeline when your roots grow in, gofor demi-permanent dye.To keep your color looking fresh andglossy, touch up your roots every six toeight weeks following the initial dye job.Many root concealing products exist,are semi-permanent, and can typicallybe washed out with shampoo.Finally, turn to high-quality products,including shampoos, conditioners, andmasks, to keep your strands hydrated