Aesthetic medicine has become a passport stamp. As Kim Kardashian, Gwyneth Paltrow, Eva Longoria and Rachel Brosnahan publicly chronicle trips built around facials, injectables and wellness retreats, beauty tourism - once a private indulgence - is reshaping how travelers plan vacations and where they spend money on their faces and bodies. The stakes for readers are practical. The clinics celebrities choose are increasingly accessible to non-famous patients, and experts say the country matters less than the credentials of the doctor.