By StyleWatch
Updated May 14, 2009 06:18 PM

Steve Granitz/WireImage

Those of us who grew up on her classic films like Heathers and Reality Bites and see her now keep asking each other the same question: why is it that we keep getting older while Winona Ryder keeps staying the same age? “She hasn’t aged and let me tell you, she has had absolutely nothing done,” her make-up artist on her upcoming film Stay Cool and friend Kim Collea tells PEOPLE. Her secret? “She is a very healthy eater, and I think that is a big part of it,” says Collea. “It sounds boring, but the girl eats a lot of salads. And you know those giant Big Gulps cups that most people fill with soda? She’s got hers filled with water.” As for make-up, Ryder, who famously sported a Gothic look in movies like Beetlejuice and Edward Scissorhands, has switched to a minimalist and more natural look. “When it comes to Noni, less is always more,” says Collea. “With her I did a mix of Neutrogena, Chanel, and this stuff called Alison Raffaele a natural line. She likes everything to be natural. Her palette is all ivories, and beiges and very light browns.” One thing that hasn’t changed for the Gen-X icon is her knack for the perfect accessory. “She has the most amazing handbags,” says Collea. “Designers send them to her. They are beautiful.” To read more about Ryder’s surprising cameo in Star Trek and the 37-year-old’s new life in Hollywood, check out this week’s issue of PEOPLE. –Oliver Jones