21 Beauty Products Our Editors Never Travel Without

"I originally bought a T3 Tourmaline T3 SinglePass Compact Flat Iron ($79) when I had bangs (it was just better at getting into the root than my normal-sized iron), but now I keep it in my carry-on for trips. It's only about eight inches long and is perfect for on-the-go touch-ups after flying, especially if, like me, you need to smooth down any mussed-up hairs after falling asleep against the window." — BS