As many 100mls of your favourite skincare items as you can legally fit into your clear plastic toiletry bag! The cool and dry atmosphere of an aircraft gives way to dull looking skin, especially when you’re set for an overnight flight. If you’re short of space, just make sure you pack vaseline (because it’s multipurpose), a sheet mask (so you can pamper with no mess) and a dewy, brightening serum to finish.