Can you bring shampoo on airplanes?

Yes, you can bring shampoo on airplanes, but there are restrictions. If you're carrying it in your carry-on luggage, the shampoo must be in a container of 3.4 ounces (100 milliliters) or less, and all containers must fit within a quart-sized zip-top bag. Larger containers can be packed in checked luggage. Always check the specific airline regulations and security guidelines before traveling.