Young Living Essential Oil

I'm sure most of you must have read of this Young Living Essential Oil.
I'm now reading up information on this and is tempted to try it. Particularly RC and Clarity oil.
RC is more for congestion and sinus while Clarity is for concentration, which are just the ones I need.
Now is whether to just buy the oil from my friends or to join the membership system, so that I can earn the points while oiling.. Shall ponder and see how...