MAC Studio Fix Powder

I really dont know what to use this for.Is it a foundation, a setting powder, what?Im so confuzed with this one.But none the less, what I do use it for, works.What I do is put a liquid foundation on, build that coverage, let it sit for about a minute, then put htis powder on top of it.I find that it sets my foundation, as well as gives me more coverage.I also use it as a blending color for my eyeshadow, to fade out harsh lines.I use this powder every day I put makeup on, which is about 4 days a week.With the 26 dollar price tag, I am getting my moneys worth, but dont think I will buy again, unless nothing else I try works for me.I notice with this powder, there is no cakey look on my face after, unlike a lot of other powders I have tried.I think with this powder, becasue is has the name brand it, then people love it, doesnt matter how good it works, or if they use it alot, as long as people know what the have MAC in the makeup collection, they are looked up too in the beauty world.