I'm not sure what is in soex, although I believe it contains a large amount of "I'm gonna puke!" and possibly some "fucking nasty!"!
traditional shisha(btw, in the mid east, "shisha" is a name for the hookah, not the tobacco.In the west, for some reason, we call the tobacco "shisha".)is made with tobacco mixed w/ mollasses and/or honey.More contemporary brands tend to use vegetable glycerin as an emulsifier. The nicotine content is determined by the quality of the tobacco and whether or not it has been "washed". As far as tar goes, anything you smoke will contain tar, even soex.