COVERGIRL Outlast All-Day Primer.
/Makeup primer is an essential part of your makeup routine. I honestly don't know what I did before I had makeup primer; they are one of the best inventions when it comes to makeup. Ever. A makeup primer will help makeup go on more smooth, minimize pores and fine lines. Not only that, a makeup primer ensures that makeup stays on your face all day - through heat and humidity, basically all the elements of the day. It's especially important as we are in the thick of the summer.
I have yet to find a good primer at the drugstore until now. COVERGIRL recently launched Outlast All-Day Primer and it surpasses all of my expectations. This is a good one!