Did Demi Moore make a deal with the devil? Even though Moore is older than most of the starlets on this list, she still turns heads when she walks into the room, thanks to her beautiful skin and fit body. Moore's beauty regimen ranges from the stunningly simple to the bewilderingly bizarre. On the one hand, everyone can "moisturize, moisturize, moisturize," which Moore has claimed was the best beauty secret her mother passed on to her [source: Kirby]. But if you want something more exotic than moisturizer, perhaps you'd be interested in leech therapy? In a 2008 interview with David Letterman, the actress revealed that she'd undergone a cleanse in Austria that involved leeches sucking out her toxins [source: Simpson]. Whatever she's doing, it's working: She and husband Ashton Kutcher have the same smooth skin.