What's the Legal Age to Buy Vape? Vaping Laws Explained. Buying Electronic Cigarettes: How Old is Old Enough? White Cloud White Cloud Electronic Cigarettes Legal Age To Buy E Cigarettes You Must Be 18 Years or Older to Purchase E Did you know that the legal age to purchase and use vaping products in the United States is 21 years of age? For more information about youth nicotine use visit https: med.stanford.edu halpern felsher reach lab parent corner.html Just a reminder, the minimum age to buy nicotine products in Indiana is 21. This means retailers are prohibited from selling cigarettes, e liquids, and e cigarettes to anyone under age 21. We