Page Six may be compensated and/or receive an affiliate commission if you click or buy through our links. Featured pricing is subject to change. For Jen Atkin, healthy hair is always the mane event. And with fall nearly here, the celebrity hairstylist and Ouai founder predicts we’ll be seeing one trend dominating red carpets like the Emmys and VMAs: “Beautiful, glossy hair.” “I think that the common denominator will probably just be shiny hair and personality,” she told Page Six Style, while discussing her new Swiffer Hair Magnet partnership. And if anyone knows shiny hair, it’s Atkin. Her brand’s Hair Oil has been used by stars like…