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 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 Buying Electronic Cigarettes: How Old is Old Enough? White Cloud White Cloud Electronic Cigarettes Vape Age Requirements By State How Old Do You Have To Be To Buy Vape Products Vape Minimum Age How Old Do You Have to Be to Vape? Find Out Here Headshop.com How Old Do You Have To Be To Vape?