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. How Old Do You Have to Be to Vape BOOST! Tobacco 21 Is the Law of the Land: Raising the Minimum Sales Age for All Tobacco Products to 21 American Lung Association 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 Vaping Laws in New Mexico: Guide of Age, Flavors, Tax & Rules Ecigator