Tobacco already comes with nicotine. God put it in the DNA of that plant.
Can tell you have never been anywhere near a tobacco crop. Workers can get nicotine poisoning from wearing short sleeve shirts in the field.
They add nicotine to it and I am not going to google it for you. I have tobacco growing 200 yards from my house, I work 200 yards from RJR reynolds. That and soybeans is all they apparently know how to grow around here.
