This is one of my favorite straightening products to use on any texture. On the package, Redken says that it's made for fine hair, however the "sister product" that was formulated for coarse hair, called Power Tame, is awful. It's sticky, heavy and leaves a film on the hair.
So I just use Sheer Straight on everyone.
Sheer straight is light but effective even on the coarsest of textures. And if you need extra straightening apply a layer of Sheer Straight, run it through the hair, and then apply a thin layer of Slim Supreme on the hair.
So go ahead, beat the humidity, and rock some straight hair this summer.