Putting diethylene glycol in your product is not healthy or harmless at all.
These are the chemicals found in electronic cigarettes and also some of the side effects you could potentially run into. Acetaldehyde causes irritation of the eyes, skin and respiratory tract. Benzene is a well known carcinogen and can cause drowsiness, headaches and chronic use can cause various disorders in the blood. Cadmium in the body can cause problems for your lungs including pulmonary irritation. Formaldehyde in humans can cause fatigue, skin rashes, throat irritations and may cause cancer. Toluene is known to have adverse effects on the liver, kidney, lungs and at high use can cause severe depression. Nicotine is known to cause lightheadedness, dizziness and fatigue, and this toxin is the reason everyone loves smoking because it is so addictive. And n-nitrosonornicotine, one of the famous carcinogens known to be in the smoke of a cigarette, is classified as a group one carcinogen by the IARC (International Agency for Research on Center). It's interesting how the companies tell their consumers that their product contains no carcinogenic smoke, well the FDA has tested them and found out otherwise. All the side effects mentioned above came straight from the U.S. Environmental Protection Agency (EPA) themselves. They are a government issued source and have done scientific studies on real people to back up there information. .
Electronic cigarettes still contain a surprisingly high amount of nicotine in them so it is not helping people kick their bad habit. An electronic cigarette can actually contain a higher nicotine level than that of a regular cigarette. The amount of nicotine an electronic cigarette delivers depends on the liquid-nicotine cartridge installed. Customers can choose the level of nicotine in each cartridge and some contain more nicotine than a regular cigarette. While electronic cigarettes may be healthier as far as the amount of chemicals, the bottom line is that they still contain a fair amount of nicotine in them.