What it is: A skin-quenching primer that prepares skin so makeup goes on easier and lasts longer. What it does: It helps maintain skin's youthful appearance and minimizes the look of pores and fine lines while bringing out your natural radiance. How to use: Apply a pea-sized amount all over your face using your fingertips to massage in until fully absorbed. You can also mix it with any liquid foundation for sheerer coverage or use it as an eyelid primer or hand and body moisturizer. 1.7 oz.