If there is a MAC Cosmetics product that I swear by it has to be the, Prep + Prime Fix +. It is so good, it is very refreshing and makes makeup looks smooth and flawless. It's great for both dry and oily skin.
I spray MAC Fix + (the lavender edition smells so good) all over my face after I've applied my makeup. Your make up melts into your skin looking more natural and flawless. Many make up artists love this product and I see why. They use it in a million different ways and on Youtube you can see them all. I'm rarely addicted but to this product I am.