I recommend loose powder.

I recommend Etude's Sebum Control Powder. I'm on my third tube, and it leaves a smooth, matte finish. The cushion is also small, so it's easy to apply even to the curves of my nose. I

I have bangs, so I use this frequently to control oiliness in my bangs as well. My hair gets greasy quickly in the hot summer, but using this makes it feel fresh right away.

It's a summer essential.