As if celebs like Alexa Chung and Lily Aldridge weren’t already gorgeous enough, along came Instagram a few years ago to illuminate their beauty even more. When you have well over a million followers on the photo-sharing site (as some of these ladies do), you’re probably going to put a little extra effort into your selfies. Wanting to know the secret picture-snapping formula, we did a little detective work and started to notice a pattern amongst the most striking photos: the same filters appear over and over. While lighting, makeup, and wardrobe certainly play a factor, these "special effects" ensure that your selfies show you at your best. Get ready to induce a little Insta-envy of your own!