I use them daily.... and i also use herbs. I like the essential oils because they are SO instant and they can be used to BYPASS DIGESTION. I dilute them, and be very sure of their quality. Diluted sandalwood is the best deodorant EVER! I even tried on the teenager that lives with me. It really works. They are very different though huh? Just a single drop of some oils diluted is so powerful, like everything. READ or learn from a master. Also different oils have different lifespans. Herbal extracts cal last more than a decade.... oils can go bad in a year or faster.