Are additive free cigarettes really additive free?

They probably are. "Additives" - and there are dozens used in conventional cigarettes - improve flavor, "silkiness" of the smoke, smoothness, and other subtle little aspects of smoking. Additive-free cigarettes have none of those things. But they still have nicotine. And nicotine is the addictive elements in any tobacco. Advertising cigarettes as "additive free" is a cynical way of getting people who are trying to quit, to clutch at a straw. They are 100% as addictive as any cigarette, and they are not going to help you to quit. But they are"additive free".