Kim Kardashian’s new energy drink, Update, is marketed as “caffeine-free.” How is that possible, exactly? Bazaar beauty editor (and in-house wellness obsessive) Katie Intner had the same question, so she consulted some experts and learned that Kardashian’s brand taps a chemical called paraxanthine, which offers the same benefits as caffeine without the downsides. To learn more about this buzzy new ingredient, check out our top story below.
—Izzy Grinspan, digital director
