What is a good shampoo/conditioner combo to bring out how your hair naturally looks?

I know that my hair isn't naturally straight. It's wavy, but if I blow dry it, or air dry it, it turns out looking a mess. I use a CHI straightener, and that works great but my hair appears (and feels) coarse and frizzy. I would like to know if there is a shampoo/conditioner combo that will allow my hair to be the way it is naturally. Thanks so much.