They are totally different in terms of smell. I am not an expert, but Lys smells like "watery" Lilly and Carnal flower is a tuberose smell and it is potent. I have both and like them very much. Carnal flower is difficult to pull off in hot weather, I think it is more of a fall/winter fragrance IMHO. Some would argue Carnal Flower is more of a feminine scent. I like it so I wear it. Should try to buy decant first to see if you will like it.