For a 2026 MSC Cruise, the "banned list" is strict regarding safety and revenue. You cannot bring any alcoholic or non-alcoholic beverages (including water, soda, or juice) as carry-on or checked luggage; these will be confiscated at the pier. Prohibited items also include heat-producing appliances like clothing irons, steamers, kettles, and candles. MSC has recently emphasized a ban on drones and "covert recording devices" like smart glasses in public areas to protect guest privacy. Furthermore, you cannot bring medical marijuana (even with a prescription) or CBD products, as they are illegal under many maritime laws. While curling irons and hair dryers are allowed, they must be in good repair; essentially, anything that presents a fire hazard or a risk of illicit data recording is strictly forbidden to ensure the safety of all guests.