You can take a razor on a plane, but the rules depend on the type of razor and how it is packed.
- Disposable razors, cartridge razors (with the blade encased in plastic), and electric razors are generally allowed in carry-on luggage.
- Safety razor blades and straight razors (exposed blades) must be packed in checked luggage as they are not allowed in carry-ons.
- Electric razors are permitted in carry-ons since their blades are enclosed and do not pose a security risk.
- If the razor blades are removable or exposed, they must be placed in checked baggage to avoid confiscation.
It is also advised to check specific airline rules and international regulations before traveling to confirm, but the general TSA and common airline guidelines follow this pattern.