Solution: First, slather conditioner all over--except your roots. This keeps the dye from staining the rest of your hair. Then, using the fine-tipped squeeze bottle that came with your hair-color kit, apply liquid color to just the areas of regrowth. Leave on according to package directions and rinse hair well. If you accidentally dye the tops of your highlights, use a highlighting kit to redo them.
Photo Credit: Getty Images/Lise Gagne