It's the nicotine present in the tobacco plant that is addictive, which is why nicotine patches and sprays are useful in kicking the habit. It is alleged that the tobacco companies use additives which enhance the effect of the nicotine.
It's addictive on its own, but the additives make it nore addictive. There are cigs with no additives, though, like American Spirits.
tobacco, regardless of the additives is chemically addictive as a result of the chemical compound of nicotine...However tobacco has been studied to indicate a psychological addiction as a result of the sensory sensations your body has become use too like second nature...
It's a habit and a very big one. The addiction is the easy part to break.
It's addictive all by it's ownself...the additives just help.
Nicotine is whats addictive. The additives are both preservatives and what make more nicotine go into you.