Highlights add dimension to your hair and can instantly brighten your face. They can make you look younger and make your hair appear more voluminous. Ideally, highlights should be one to two shades lighter than your natural hair color. Incorrectly highlighting your hair, or using bleach, can damage your strands, leaving you with fried, brassy highlights. To get rid of the dull strands, learn various methods to brighten your highlights.

Place 1 cup of water, 1 tablespoon of lemon juice and 1 tablespoon of olive oil in a spray bottle. Spray the mixture on your hair before going outside in the sunlight. The lemon juice and sunlight have a natural bleaching effect on blond hair. They brighten your highlights, while the olive oil combats dryness.

Use shampoos and conditioners made for highlighted hair. These products brighten your highlights and add a shine to them, without stripping the color.

Wait it out, because highlights get brighter over time. The more you wash your hair, the brighter your highlights will become.

Undergo a cellophane treatment to add a glossy shine to your hair that brightens your highlights and eliminates brassiness. Visit a hair salon for the treatment or purchase a commercial color gloss treatment to do it yourself.

Add an iron filter to your shower, because iron in the water you use to wash your hair can make your highlights dull and brassy. Purchase the filter at your local home improvement store.