Mugsy,
I don't know but Mexican vanilla was recommended to me by an old timer with about 35 racks hanging in his living room so I didn't ask!! One thing for sure is that it comes in a big enough bottle to last awhile and I don't worry about using too much either. I've used handfuls of it and rubbed it all over my body and hair. It's actually quite pleasant and keeps working for hours. The price isn't bad at all compared to commercial products in pump sprayers.