i got mine from www.camdengrey.com and i use it several times a week. i dilute mine in sweet almond oil.
Recipe
15-20 drops of rosemary oil
4-8 oz of sweet almond oil (depending on how much you are making at the time- i usually make 8 oz worth at the time)
Hope this helps.
I got mine from www.fromnaturewithlove.com
I use it with peppermint oil, cedarwood, and sweet almond oil as a carrier.
What other oils do you mix it with? Or do you buy it already mixed
I use it from time to time..I actually need to get some more. But you should be able to get it at any natural food stores or herb shops. HTH