To fix bad highlights, visit a salon, and ask your stylist to extend the highlights from root to tip. Then, ask the stylist to apply lowlights to achieve a more natural range of colors.
- Find an experienced colorist
Call your favorite salon and schedule an appointment with an experienced colorist. Do not choose your normal stylist by default; he or she may not have more than a basic knowledge of hair coloring. Before the appointment, stop in to show the colorist your hair or send in a picture to help ensure that he has the right dyes on hand.
- Extend the highlights
Tell the colorist what products you used to get the bad highlights, including dye numbers, brands and shade names. Provide as much information as possible to help the stylist find the right match. Ask your colorist to extend the highlights from root to tip to prevent odd patches of color.
- Add lowlights
If your highlights are not dramatically different from the rest of your hair, ask the colorist to add in lowlights to create a more natural range of colors. If your highlights are multiple shades lighter than the rest of your hair, ask the stylist to add another color to create a less obvious transition between the lightest and darkest shades.