Mexico - RULES

"Electronic Cigarettes (Vaping Devices): It is illegal for travelers to bring electronic cigarettes (vaping devices) and all vaping solutions to Mexico. Customs will confiscate vaping devices and solutions and travelers could be fined or arrested. Avoid delays and possible sanctions by not taking these items to Mexico. "

https://travel.state.gov/content/travel/en/international-travel/International-Travel-Country-Information-Pages/Mexico.html