thermal protection spray

I used to use Tresemme Heat Protectant, but since I have been doing no silicones for a while now I had to find a new heat proctectant when I started straightening my hair again this fall (I do air...

The first time I used the GVP thermal protection spray, which I bought at Sally's, I thought it worked pretty well but I noticed my hair wasn't as shiny as usual. After 5 times of using this, my...