Summer Beauty Do's & Don'ts

Get the lowdown on the must-have looks of the season from PEOPLE's beauty expert. By Serena Kappes

TREND: SHEER HOT-PINK LIPS

DO: Opt for sheer stains and glosses with a pop of color – think the shade of watermelon juice (as seen on Chloe Sevigny and Nicole Kidman).

DON'T: Apply heavy eye makeup. "The lips are the focus," says Gage.