[size= medium]Many travelers question whether [/size]<strong style="font-size: medium;" data-start="1030" data-end="1126">nail polish on plane[size= medium] is permitted in both carry-on and checked luggage. TSA allows nail polish in carry-on bags within the approved liquid limits, while checked baggage provides more flexibility for larger quantities. However, pressure changes during flights can cause bottles to leak, making proper packaging essential. Wrapping bottles individually and placing them in leak-proof containers reduces the risk of spills. International airlines may enforce stricter regulations on flammable liquids, so reviewing airline-specific policies before departure is recommended for a hassle-free experience.[/size]