Yes, you can typically take a cleansing balm on a plane. However, there are a few guidelines to keep in mind when traveling with skincare products, especially in your carry-on luggage.

1. Size Restrictions: The Transportation Security Administration (TSA) has restrictions on the size of liquids, gels, and creams that can be carried in your carry-on bag. Containers should be 3.4 ounces (100 milliliters) or less and should all fit in a single quart-sized clear plastic bag.

2. Packaging: Ensure that your cleansing balm is properly packaged to prevent any leakage or spillage during the flight. It is recommended to place it in a sealed plastic bag or use travel-sized containers that are specifically designed for air travel.

3. Check Airline Regulations: It's always a good idea to check with your airline to see if they have any specific rules or restrictions regarding skincare products in carry-on luggage. Some airlines may have additional guidelines or restrictions that you should be aware of.

4. Declare if Necessary: If you are unsure whether your cleansing balm falls under the liquid, gel, or cream category, it's best to declare it at the security checkpoint. TSA officers will be able to provide guidance and ensure that you comply with all regulations.

Remember, these guidelines may vary depending on the country and airline you are traveling with, so it's essential to stay updated and informed before your flight.