There is no current scientific evidence that nicotine is a cancer causing agent. It is tobacco smoking that is associated with increased risk of lung cancer, heart disease. Nicotine may be an addictive substance, however it is non-carcinogenic. It does not cause cancer. Several studies have even proven that nicotine may have some benefits including reducing the rist of Parkinsons and Alzheimers disease. It is the multitude of chemicals in traditional cigarettes that cause extensive health problems, making vaping a great alternative to traditional tobacco use.