From June 30 this year, international travelers are required to remove all powers from their carry-on baggage for screening in Australia.

Expect longer checks if you’re carrying powders.
Planning to carry-on a bag of cooking spices, or perhaps, the latest face powder from a popular beauty brand? You might want to think twice.
From June 30 this year, international travelers are required to remove all powers from their carry-on baggage for screening in Australia. This move is in line with a heightened security screening rule by the Transportation Security Administration (TSA).
In addition, there will be quantity restrictions on certain types of powders that can be brought aboard.
According to TSA, anything more than 354ml of powder will be subject to additional screening (travelers will be asked to remove them from their carry-ons).
Examples include make-up powders, dry shampoo, baby powder, and more. There’s a chance that these items will be thrown away if TSA agents are unable to identify what the powder is.
This new rule comes after an attempted plot to attack a passenger plane in Australia last year. That said, powders have always been a concern for TSA, especially with it being a popular way of smuggling explosives.
Apart from increased security measures within U.S., the TSA has also requested that foreign airports with nonstop U.S. flights implement these strict checks as well. Australia has begun enforcing these rules since June 30, with more countries to follow suit.
TSA’s growing number of security measures include requiring travelers to remove electronics larger than a cell phone from carry-on bags for screening.
More information here.