What is the best product to highlight hair?

My hair is dyed dirty blonde. I want to go to Sally Beauty and get something to put a few beige highlights around my face but not too many. I don't know what the best product would be since my hair is dyed. What is the best product to use that won't kill my hair? Thanks!What is the best product to highlight hair?
I would say get some Sun-In. It's a spray made for hair that is blonde or light brown and it creates natural looking highlights just from sun exposure. Plus i heard it smells awesome. If you'd rather do ';real'; highlights i'd ask a specialist. It's always a risk doing it yourself. But if you insist, you should try some of those things they show on commercials where you take the color and you put it on a comb and comb it through your hair to create streaks. I don't know if it works but hey, it's all i've heard of.What is the best product to highlight hair?
dont do it yourself!!!! you should really do to a hairdresser because if you dye ur hair yourself when it is already dyed the colors could mix and end up changing colors and then youll end up with a hair color you never wanted!!