The ingredients in the e-cigarette are considerably different than those found in real cigarettes. The e-cigarette, e-cigar and e-pipe do not contain any real fire, tar, carbon monoxide or ash. The main ingredients for the e-juice in cartridges, cartomizers and refill bottles are water, food grade propylene glycol, and a slight scent to emulate the flavor you are smoking. None of these ingredients are considered to be cancer- causing agents. The Food and Drug Administration deems propylene glycol safe, and can be found in such items as soda, popcorn, cake mixes, nebulizers and inhalers. Nicotine is an optional ingredient, as you can purchase e-liquid, cartridges, and cartomizers in a “NO nicotine” level.
Cigarettes, cigars and pipe on the other hand, commonly contain tobacco, thousands of other chemicals, nicotine, glue, paper which when ignited (according to the Centers for Disease Control), can harm nearly every organ of the body, cause cancer, and cardiovascular and respiratory disease.