According to 2026 TSA guidelines, the most traveler-friendly options for carry-on luggage are disposable razors and cartridge razors (like those from Gillette or Venus). These are fully approved because the blades are permanently housed in a plastic head or a removable cartridge, making them difficult to use as a weapon. Electric shavers are also completely permitted in both carry-on and checked bags. However, safety razors (the traditional metal ones) come with a major caveat: you can bring the handle in your carry-on, but the individual, loose blades must be packed in your checked luggage. Straight razors (the "cut-throat" kind used in barbershops) are strictly prohibited from the cabin and must always be checked. If you are carrying shaving cream or gel in your carry-on, remember it must still comply with the 3-1-1 liquids rule, meaning the container must be 100ml (3.4 oz) or smaller and fit inside a single quart-sized clear plastic bag.