Yes, you can generally take hair styling powder on a plane in your carry-on luggage. However, it is always recommended to check the Transportation Security Administration (TSA) guidelines and regulations for the specific airline you are flying with, as rules may vary slightly. In general, powders such as hair styling powder are considered to be non-liquid and non-gel items, which are typically allowed in carry-on bags. It is important to ensure that the powder is properly sealed and packaged to prevent any spillage or contamination during the flight. If you have any doubts or concerns, it is advisable to contact the airline or check their website for specific guidelines.