The legal age to buy cigarettes, vaping products goes up Tuesday 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 U.S. Raises Tobacco Buying Age to 21 WSJ Trump administration looking at raising age to buy e cigarettes Fox 59 It is illegal in Illinois for anyone under the age of 21 to buy tobacco products. It's also illegal for adults to purchase these products for underage individuals. Help Teens gain awareness How Old Do You Have to Be to Vape?