September 25, 2014 - 14:35 BST hellomagazine.com Kendall Jenner has revealed her biggest beauty secret for surviving Fashion Week. Kendall Jenner has revealed her biggest secret for staying fresh-faced and energised during her hectic Fashion Week schedule. "I usually start my day off with a cup of detox tea," the Keeping Up With The Kardashians star told E! News. "I have like 12 cups a day." Photo: © Getty Images Kendall Jenner walking the Dolce & Gabbana show at Milan Fashion Week The 18-year-old has graced countless high fashion catwalks this Spring 2015 season including Balmain, Dolce & Gabbana, Marc Jacobs and Fendi, and admitted that she was trying to find the time to get back into an exercise routine. "I like running," she revealed. "I've been trying to get back into it." However, Kendall revealed that she was surviving Fashion Week due to one big beauty secret. "My beauty secret for Fashion Week is just getting a good amount of sleep," she admitted. "I feel like I at least need about seven hours, eight hours of sleep to function." The stunning brunette added that when it comes to healthy eating, she sticks to a diet of lean protein, fruit and vegetables, snacking only on apples. Kendall Jenner in the Balmain Spring 2015 catwalk show Kendall made her Paris Fashion Week debut on Thursday as she strutted down the Balmain catwalk, with big sister Kim Kardashian watching from the front row, joined by Kanye West and Kris Jenner. The young model had previously asked Kim not to come to shows in which she walked, as she wanted to establish her career based on her merits, rather than her famous family name. "People think this success just came to me, but it didn't," she added. "What I have has almost worked against me. I had to work even harder to get where I wanted because people didn't take me seriously as a model because of the TV show."