Getty Images Us Weekly has affiliate partnerships. We receive compensation when you click on a link and make a purchase. Learn more! Let's face it: We're all chasing the fountain of youth. This is a main reason that the markets for anti-aging serums, plastic surgeries, ten-step skincare routines and rigid diets are so popular. Seeing how certain celebrities like Gisele Bundchen and Jennifer Aniston defy aging, however, can be a source of inspiration.