For Gossip Girl's poshest star, happiness can be simply defined with minimal makeup and wild hair. While her character Blair Waldorf may love pricey blowouts and designer cosmetics, Leighton Meester told InStyle (in our August issue, on stands now) that "in my normal life, I don't even really wear makeup. I'll just use a little cheek stain, curl my lashes, and put on some lip balm and sunscreen." When the Herbal Essences spokesmodel isn't working, she tries to "treat her hair with kindness because it takes so much abuse! On days off I let it air-dry." Want to know what Meester uses to achieve her totally natural yet completely gorgeous look? Click through our gallery to see which products she can't live without.