Mascara is a colloidal suspension. That means tiny solid pigment particles float in a liquid base. This is why it dries on your lashes but stays liquid in the tube. Science is crazy, right?
It also has preservatives to stop bacteria from breeding. If you don’t replace it every three months, you’re basically painting bacteria on your eyes. Charming.
Ever wonder why mascara smells faintly of varnish? It’s because the solvents (like water or alcohol) evaporate fast. That evaporation makes it “dry” on your lashes. But in a bottle? Pure liquid criminal.
Tsa Carry On Rules Mascara at Erin Patteson blog
What the TSA Agents Are Thinking
Imagine being a TSA agent. You stare at a conveyor belt of goo all day. Mascara tubes look suspiciously like tiny ink pots. One agent confessed online: “I’ve confiscated so much mascara, I could open a beauty counter.”
They have a checklist. Gel eyeliner? Liquid. Foundation? Liquid. Mascara? Liquid. If you argue, they’ll quote the rulebook with a straight face. You can’t win against a government with a scale.
Pro tip: don’t try to hide it in your shoes. They’ve seen it all. “Ma’am, your sneaker has excessive eyelash glue.”
