I will not repeat eo and fo difference. I will say I have purchased eo from http://www.av-at.com/ for many years. Contact Butch if you need wholesale pricing. The current world market on eo's in terrible. Helichrysum I purchased 2 years ago at $87.50 an oz and now it is $225.00 and oz if you can get it. The sandalwood that is available today coming into this country is contaminated and much of it is worth not selling so suppliers are not accepting the shipments. You want to be sure the person you are buying from, tests oils at a lab prior to selling them. Their web sites will tell you. The war in the Mideast has effected prices in the region. Spikenard, patchouli, sandalwood, many others. I avoid any site that sells eo's say any 10 ml variety for $6-10. Good luck in your search, once you have a good relationship with an eo supplier, support that person because many eo suppliers will be going under in this economic enviroment. Many business that have been around for a 10-20 of years. Hope this helps!