It was given to me. i had no idea this cost so much. just a single drop or two is usually more then enough for my personal office space. I have used this every single day and some days way too much for about 30 days and i still have 75% left over. it smells so incredibly good. anyone that drops by says it just smells fantastic. I have many other blends and oils, but i cant stand to use them now, i only want to use this stuff. although it is very expensive i would buy it without question due too how good it smells and lasts. nothing compares so far.