Liquids: (1) Passengers may carry a small quantity of cosmetics for personal use during travel (e.g., toner or lotion, excluding alcohol-based products). Each type of cosmetic is limited to one piece, with each container not exceeding 100 ml, and the total volume not exceeding 1 liter. Such items should be placed in a separate bag and are subject to inspection upon opening. (2) Any excess must be checked in. Note: Flammable, explosive, or corrosive liquids may not be checked in or carried on board. The requirements of the airport security checkpoint shall prevail.