What's the Legal Age to Buy Vape? Vaping Laws Explained. Vape Age Laws: Minimum Age to Buy Vapes in the U.S. & Online 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 New Study: Parent Knowledge of the U.S. Tobacco 21 Law Do you know the legal age to purchase tobacco in the U.S.? It turns out many parents don't. In a survey FDA Regulations For And Against Vaping ECIGS International It's never too early to talk to your teen about the risks of vaping. More than half of Michigan students tried their first e cigarette at age 13 or younger. Get tips and