Corded electric hair styling tools, including electronic hair brushes, flat irons, curling irons, and electric hot rollers are all allowed in hand and checked baggage without restrictions.
Wireless electronics powered by lithium batteries or butane are allowed, but only in hand baggage. Usually, the heating element must be protected from accidentally activating as well, and spare batteries/cartridges aren’t allowed.
Sharp hair styling tools, including scissors and metal rat tail combs, are only allowed in checked baggage because sharp items are banned for hand luggage due to safety concerns.
When it comes to toiletries, all liquids, pastes, gels, creams, and aerosols are restricted to 3.4 oz (100 ml) quantities in hand baggage and they must fit in a single 1-quart/liter bag of toiletries. In checked luggage, larger quantities are allowed. This includes hair gel, hair clay, hairspray, hair dye, dry shampoo and regular shampoo, and other liquids/aerosols.
Solid items, like hair wax, usually aren’t counted as liquids, so they can be also packed in hand luggage without any quantity restrictions.
And lastly, there are additional rules for aerosols and perfumes, including hairspray and dry shampoo. Because they’re flammable, they’re restricted in checked baggage to 18 oz (500 ml) containers or smaller and the total amount of flammable toiletries per passenger can’t exceed 70 oz (2 kg). Furthermore, a safety cap must always be installed on the release nozzle.