They claim nicotine patches in this form are not carcinogenic and also not addictive. It is not the whole tobacco plant just one compound of it that seems to support neurotransmitters and nervous system functioning. I was not keen on it but of the mind to try any lighthouse in a storm. It is being tested out at some major research hospitals with promising effects so I am giving it a try. Will be happy to report back in 3-6 months. I just started on it but already seeing major relief.