Okay, I've been wearing Dia de Los Muertos in my hair as it seems to be one of the best places for me to use many scents without smelling this overpowering scent on one part of my body. I put in one drop in my leave in conditioner (mind you it was a largish drop).
When I first put it on, I definately smelled a smokiness that I can only assume is the tabacco. After about an hour or so I noticed that the scent had mellowed and that I was picking up smells that were a cross between Pan de Huevo (mexican pastry- it an egg bread type product with vanilla and other stuff) and Dulche de Leche candies.
Later yesterday I noticed another scent as I was bowling, probably because I was sweating a little, That I believe was the cereus (I haven't been back to Tucson in blooming season for those in over two years).
I washed my hair this morning and I can still smell the scent. Given that I normally go girlie girl with scents, this one is a bit out there for me (as it I wouldn't normally seen it smelling really good on me) but I think it smells amazing, and I spent most of yesterday catching whiffs and thinking man I want to go back to desert.
Edited to add the lab's description--andrabell