Tips on traveling with liquids limit The limit is one bag per person. Typically, travelers put their toiletries in the bag such as shampoo, hair products, make-up and toothpaste. Individuals who want to pack their large bottle of shampoo or full-size toothpaste should pack those items in their checked bags.

For air travel in 2026, the location of your shampoo depends on the bag it is in and its volume. If it is in your carry-on, it must be in a container of 3.4 ounces (100ml) or less and placed inside a single, clear, quart-sized resealable bag (the 3-1-1 rule). This bag should be kept in an outside pocket or at the top of your luggage for easy removal at security. If you are using checked luggage, you can pack full-sized bottles, but you should always place them inside a secondary leak-proof bag or a "bag-within-a-bag" setup. Pressure changes in the cargo hold can cause bottles to "pop" or leak, so cushioning them between soft clothing away from the suitcase walls is a standard pro tip. To avoid liquid rules entirely, many 2026 travelers have switched to shampoo bars (solid soap), which can be tossed anywhere in your luggage without restriction, as they do not count toward your liquid allowance and cannot leak on your clothes.