How do the ingredients in electronic cigarettes compare to those in regular smoking products?
Electronic cigarettes contain water, propylene glycol, nicotine, a scent that emulates a tobacco flavor, other flavorings, and a membrane to suspend the ingredients. The U.S. Food and Drug Administration has determined propylene glycol to be “generally recognized as safe” for use in food, cosmetics, and medicines although use in simulated smoking devices is not currently included in the list of usages generally recognized as safe.
