How Old Do You Have to Be to Vape? 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 New Pa. law raising smoking, vaping age to 21 to take effect in July 2020 FHS Press The FDA Regulations say the minimum age to sell tobacco and vaping products is 18, but it may be different for your store. We Card FDA raises legal age to buy tobacco products to 21 Vox Did you know? The Tobacco 21 law raises the legal age to buy tobacco and vaping products from 18 to 21. Why? To help protect young people from a lifetime of addiction.