The Mouth OS Journal

Can You Bring Toothpaste on a Plane? The TSA Liquid Rule, Explained

Toothpaste counts as a paste under TSA 3-1-1, and TSA names it directly. Here is what the rule says, the quart-bag arithmetic almost nobody runs, and a packing checklist built on it.

Your Toothpaste Is Mostly Water. Here's the Problem.

Water is one of the two largest ingredients in most toothpaste, and you rinse it straight down the drain. A look at what's really in the tube, what it costs, and where it ends up.