Is mouthwash allowed in carry on baggage?

Mouthwash is generally allowed in carry-on baggage in most countries, as long as it meets certain volume restrictions. In general, liquids, gels, and aerosols in carry-on baggage must be in containers that are 3.4 ounces (100 milliliters) or less, and all containers must fit comfortably in a one-quart, clear, plastic, zip-top bag. Mouthwash that exceeds this size limit must be placed in checked baggage.

It's important to note that some countries have specific regulations regarding mouthwash in carry-on baggage, so it's advisable to check with the relevant authorities or airlines for the specific requirements before departure.