Undecided Question

Mac powder….question?

i will probably be getting the mac select cover- up concealer and i was wondering if the mineralized skin finish natural would be good for setting that concealer or the select sheer/loose powder?And also the loose powder is cheaper lol,but i dont really care about the price just need a nice powder that doesnt make me look like i have makeup on. Also which last longer for gym,etc. thx!