What is the best straightening hair product?

I am looking for something under the $15.00 mark and that works well with a flat iron. Also, I don't want it to leave my hair greasy or too shiny. Any ideas?What is the best straightening hair product?
there's a product they sell it at wallmart you'll like it too i think it's called GOT 2 Be sleek it comes in an orange triangle bottle the price is abou $6.00What is the best straightening hair product?
I have tried everything also and the only thing that works for me is an iron.
Garnier Fructis has some greatttttt products that keep hair straight, shiny and NOT greasy. Try it out, its like $6 tops.