No, you are not strictly required to have a "clear makeup bag" for all your cosmetics, but you must have a clear, quart-sized plastic bag for your liquids, gels, and aerosols. According to the TSA 3-1-1 rule, any liquid makeup—such as foundation, mascara, lip gloss, or moisturizer—must be in containers of 3.4 ounces (100ml) or less and fit within that single clear bag. Powdered makeup, solid lipsticks, and brushes do not need to be in a clear bag and can be kept in any vanity case or pouch you prefer. However, using a clear TSA-approved bag for your entire makeup kit can speed up your screening process in 2026, as it allows officers to see the contents without opening the bag. If you have "TSA PreCheck," you generally don't even need to remove your liquids bag from your luggage, making the choice of bag purely a matter of personal organization.