Nicotine itself isn't a carcinogen, just a cardiovascular stimulant. The reasons cigarettes are so dangerous are all the chemical additives they put into it. You know, tar, as an example. Also tobacco itself due to the process in which we treat it for the making of cigarettes, doesn't kill tobaccos specific cancer causing microbials.
I've read about these and they are actually very safe, and even better, obviously don't cause second-hand smoke or smell.
On another note, for anyone interested, I used to smoke as well, and while researching what the hell CAMEL SNUS was came across the real deal. Swedish Snus. Been smoke free myself for half a year now after finding this stuff.
It's kinda like American dip, however it comes in a pouch and you put it between your UPPER lip and gum. It's small and discrete, mostly because you don't spit, it's safe to just swallow the tobacco juice from it. (There really isn't too much anyways, the upper lip doesn't salivate as much as the lower.)
It's been proven to be 98% safer than cigarettes, which is a pretty big difference imo. Because tobacco is controlled by the Swedish version of the FDA the process they use to treat the tobacco kills the cancer causing agents our process doesn't.
There are ton's of flavors, and lots of variation in the amount of nicotine each product contains.
To avoid a wall of text, check out snuscentral.org tons of info there if you're curious, or send me a tell in game, I'd be happy to answer your questions. Norden in game.