Ambroxan is the ingredient around which Molecule 02 orbits around exclusively (sister scent Escentric 02 blends the note with others). Natural ambroxan is one of the lusted after components of ambergris, the prohibitively costly, rare excretion of a sperm whale. To be absolutely honest, when we tried this, we were shocked by its subtlety...and we mean subtle. In fact, all we can smell is a smooth, skin-like, we-can"t-put-our-finger-on-it fragrance afterthought that might as well be our own skin...but it isn"t. There is a slight mineral-like edge to it but it"s transparent and mild...if you"re the type of person who can instantly tell the taste of plain water versus a mineral water like Evian, you"ll instantly pick up on the gentle nuances of Molecule 02. To sum it up, Molecule 02 is very light yet always present and hovering about four inches above where you applied it, especially after a few hours. The term "skin scent" has never been more embodied than in this perfume and we bet it will both fascinate and confuse perfume lovers for a long time to come. If there"s anyone in your life who "can"t stand perfume", you"ve just found a little bottle of perfection for them.