Yes, you can certainly shower in many American Express Centurion Lounges as of 2026. These luxury spaces are designed as "premium escapes" for high-end travelers and often include shower suites equipped with high-quality towels and L'Occitane or similar high-end toiletries. To use the shower, you typically need to check in with the front desk or a dedicated "shower attendant" to be placed on a waiting list, as they are a highly popular amenity. Once it is your turn, you are usually granted 15 to 30 minutes to refresh. While most major hubs like Dallas (DFW), San Francisco (SFO), and the new Washington National (DCA) locations offer these facilities, it is always wise to check the specific amenities of your terminal's lounge on the American Express app before you arrive, as some smaller or "studio" versions of the lounge may not have the physical space for full shower suites.