Habitrol Nicotine Transdermal Stop Smoking Aid Patch 14 ct, 4 Pack. The Habitrol Nicotine Transdermal System Patch is a nicotine transdermal system skin patch containing nicotine, the addictive agent in cigarettes and other tobacco products. Habitrol Nicotine Transdermal System Patch uses time-released technology for sustained delivery of nicotine for effective, long-lasting, craving reduction. When you wear the patch, it gradually releases nicotine into your bloodstream through the skin. The Habitrol Nicotine Transdermal System Patch works by replacing some of the nicotine which your body has become accustomed to from smoking, reducing the nicotine withdrawal symptoms many people normally feel when they stop smoking. Your own chances of quitting depend on how strongly you are addicted to nicotine, how motivated you are to quit smoking, and how closely you follow a quit program plan.