This week, our favorite models and actresses showed that a little goes a long way when it comes to summer beauty. While actress Gabrielle Union and models Lily Aldridge and Adriana Lima bared their natural beauty with "makeup-free" selfies, models Elsa Hosk and Barbara Palvin showed how to perfectly wear messy, beachy waves. Models Gigi Hadid and Isabeli Fontana both wear subtle cat eyes, while actress Gwyneth Paltrow and model Miranda Kerr added a hint of pink blush to their fresh-faced looks. And Selena Gomez wore the ultimate summer glam look with her tousled bob and soft, coral lip. Here, a closer look at the 10 best Instagram beauty moments of the week.