Black davana, opium flower and belladonna.
Poison hemlock, datura and queen of the night blossom.
Aromas of frankincense, oud and myrrh.
Truth be told, the only notes I know the scent of off the top of my head are frankincense and myrrh thanks to Christmas room sprays (what?! Christmas smells gooood!) However, the witches brew sounding notes were enough to get me interested! When choosing perfume, go for base notes that you love before anything else, as these last the longest - then heart notes, then top notes.
To me, 'Freak' smells warm, mysterious and a little decadent. Upon first application, it smells like a really beautiful mens' scent - not spicy, woody or cheap like a lot of blokey scents on the market! After about an hour the scent starts to soften down, eventually becoming something a lot more feminine after around three hours. While 'Freak' is overall fairly masculine, I would say that it is more delicate than your average male scent and crosses into the 'unisex' boundary confidently. However, if you're more into your typical ladies floral or sweet scents, perhaps track down a sample before taking the plunge.