What is in Nicotine?

Nicotine is an alkaloid. Which means it’s a natural compound of hydrogen, nitrogen, carbon and in some cases, oxygen. Other such alkaloids include caffeine, cocaine, and morphine. So, as you can see they all have an addictive property and should be either used minimally (caffeine in coffee, chocolate, etc.), under a doctor’s care (morphine), or stayed away from entirely (nicotine, cocaine).