Nicotine
This substance is nicotine.
nicotine is the main addictive chemical (drug) in cigarettes
Cigarettes are very addictive because once you've started it's hard to stop. Nicotine, the main chemical in cigarettes causes you to get tempted to smoke it because of the high level of amounts in a cigarette
a substance in it called nicotine
There are many different chemicals present in cigarettes but the drug Nicotine is what makes them addictive.
Is there caffeine in Marlboro light cigarettes
Tobacco contains nicotine, which is one of the most highly-addictive substances known. We aren't familiar with what kinds of other cigarettes you mean, but if they have any tobacco in them they are potentially addictive.
Nicotine is the addictive substance in cigarettes.
The nicotine in cigarettes is highly addictive.
The nicotine affects the brain and is what causes the cigarette to be so addictive.
Among the other hundreds of possible chemicals that may be addictive in cigarettes, nicotine is the most commonly known drug in cigarettes that get you addicted to them.
As always, it depends on the person, but cigarettes are extremely addictive. Compared to other drugs they are undoubtedly in the top 3 for most addictive substances that you can use. I would advise not getting hooked because it is not an easy habit to break.