The smartest move is to surrender. Buy that quart-sized bag, toss in your lipstick, and move on with your life. Arguing about lipstick is like arguing about the meaning of “is”—it only makes you look like a philosophy major at a party. Remember, you’re going to a fun vacation, not a courtroom. The TSA agent who confiscated your lipstick is still going home to their own toothpaste-shaped problems.
I once left a tube of “Cherry Bomb” on the conveyor belt, and the agent smiled and said, “Don’t worry, liquids have a way of finding their own level.” I nodded, completely lost, but also strangely comforted. That’s the magic of travel rules: they don’t have to make sense; they just have to be obeyed. So skip the debate, zip your bag, and know that your lipstick—and your dignity—will survive the flight. Probably.
In the end, lipstick is whatever the TSA says it is. It’s a liquid when flying, a solid on the ground, and a total mystery at 30,000 feet. Just pack it in that bag, and when you get to your destination, apply it with the smug knowledge that you outsmarted the system. Or at least, you didn’t lose your lipstick to a philosophical argument with a person wearing gloves. That’s a win.