Make up artists often use primer before foundation and eye shadow, but what exactly does it do? Foundation primer smoothes your skin, filling in lines and pores before you apply the rest of your products. It can also be worn alone (on top of moisturizer) for smooth skin sans make up.
Pros: Primer makes foundation and other make up go on smoother and stay on longer.
Cons: It can be pricey, and adds an extra step to your beauty routine.
If you decide primer is for you, here are some of the best products: