Most e cigarettes (vapes) contain nicotinethe addictive drug in regular cigarettes, cigars, and other tobacco products. Nicotine can harm the adolescent brain which continues developing until about What to know about sale of smoke, vape products to KY minors Lexington Herald Leader How old do you have to be to vape? Kentucky Youth Committee: Non FDA Authorized Vapes Sold by All Stores Surveyed Get Smart About Drugs January 1st marks deadline for Kentucky vape, tobacco retailers to apply for licenses A new Kentucky law requiring smoke shops to obtain updated retail licenses takes effect Jan. 1, marking a significant step in efforts to prevent youth vaping across the state. Details below.