Tabac had tabacco in the base as one of the notes or at least the original version did have..they updated it slightly in 2014.
Original: Alderhydes, Lavender,Neroli, Bergamot, Lemon
Orris root, Jasmine, Rose, Pine, Sandalwood, Carnation
TABACCO LEAF, Tonka Bean, Vanilla, Amber, Musk, Oakmoss
2014: Pepper, Petigrain,Lemon, Bergamot, Neroli
Lavender,Chamomile,Geranium. Oak absolute
Clove, Sandawood,Vetiver, Musk, Ambergris
To my nose the soap does have an accord that is very reminiscint of tobacco leaf.