American Spirit advertises themselves as tobacco without extra nicotine or other additives added. Not the same thing, but they're...trying.

And no, they're probably not trying to cure cancer in the slightest. My grandpa was studying in the 1960s and 1970s, and big tobacco tried to fight the laboratory he worked for. The important thing he taught me before he died, from his research, was that nicotine itself interferes with your blood platelets. It's unhealthy beyond the particulates and fumes that we think of as cancerous, because nicotine is fundamentally bad for the blood. That means vaping, dip, everything affects your cardiovascular system.