Two New Indiana Vape Laws Will Kill Your Business and Your Customers I 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 Flavored Vape Ban Disposable Vapes In Indiana: Nearby Delivery Service Is It Illegal To Vape Indoors In Indiana vape law shuts dozens of e liquid makers out of industry