Powder-like substances over 12 oz. or 350mL in carry-on that cannot be resolved at the central checkpoint will not be allowed onto the cabin of the aircraft and will be disposed of. For your convenience, place powders in your checked bag.

You are allowed to take powders in your hand luggage in 2026, but they are subject to specific TSA and international security protocols similar to the rules for liquids. Any powder-like substance (such as baby powder, protein powder, or cosmetics) that exceeds 12 ounces or 350 mL (roughly the size of a soda can) must be placed in a separate bin for X-ray screening at the security checkpoint. These items may be subject to additional inspections, and officers may require the containers to be opened for testing. To avoid delays, the TSA strongly encourages travelers to place non-essential powders larger than 12 oz in their checked baggage whenever possible. For international flights, particularly those departing from certain hubs in the Middle East or Australia, these rules can be even more strictly enforced, with some airlines prohibiting large quantities of powder in the cabin altogether. Medically necessary powders and baby formula are exempt from the volume restrictions but must still be declared for inspection.