Getting highlights in your hair can be expensive and unhealthy because of the chemicals that are used. Here is a natural "do it yourself" remedy for blonde highlights:
Boil water with chamomile flowers, strain.
Fill a spray bottle with apple cider vinegar and the water infused with chamomile.
Shampoo hair, then spray and rinse with the vinegar solution.
You may then use conditioner, but the cider vinegar gently conditions as well.
Repeat as often as you like until you see the highlights you like!