Can I use my Bio Ionic® tool internationally? Customer Support April 07, 2020 20:29 You can use your Bioionic tool internationally if it has dual voltage. You will just need an adapter to use it. Related articles Is my tool dual voltage? How do I choose the right tool for my hair? Which dryers work with your diffuser? Coronavirus (COVID-19) Alert Do you accept returns? Comments 0 comments Please sign in to leave a comment.