Praising Demi Moore
's flawless beauty never gets old. Then again, neither does she. Moore, who turned 47 on Nov. 11, graces the December cover of W
magazine looking sexier than ever. Says her friend, stylist Rachel Zoe: "It's like she has a magic wand for youth!" (Sources close to the star say she hasn't had any plastic surgery.) Though Moore–who is also the face of Helena Rubinstein's new fragrance All You've Ever Wanted–maintains a mostly organic diet and gets monthly facials, her real fountain of youth comes from nurturing what matters to her most: She just celebrated her four-year anniversary with husband Ashton Kutcher
, 31, with an African safari. "How lucky I feel 2 be with this man," she tweeted on Nov. 1. And she frequently tweets that she is "so proud" of daughters Rumer, 21, an actress, Scout, 18, a college freshman, and Tallulah, 15. "Demi is healthy and fit," says her aesthetician Terri Lawton. "And her life is too–at all levels."