Women who own beauty companies tend to be obsessed with under-the-radar (read: kinda weird) at-home rituals. Urban Decay cofounder Wende Zomnir tackles cellulite on her knees and upper thighs by applying a mix of coconut oil, sugar, and Peace & Calming essential oil from Young Living (youngliving.com) and massaging the area with Zoom Groom—a rubbery dog brush. “It’s not exactly a gentle experience,” she admits. “But it works!” Caudalíe skincare has a nourishing hand cream, but its cofounder Mathilde Thomas strengthens her nails with this concoction: argan oil, grapeseed oil, lemon juice, essential oils of lemon and geranium, and honey. She offers several recipes like this in her book, The French Beauty Solution (out in July). Unfortunately, a nice Bordeaux is not among the ingredients.