When we are making our decision to purchase essential oils (EO) , we often afraid that we might buy the synthetic or adulteration essential oils. There are many essential oil's suppliers advertise “ the best ”, “ the pure ” or “ natural ”, but actually there are not. To reduce the cost, some of the suppliers will mixed with the considerable volumes of various diluents. The worst, you might even get the synthetic EO, but you didn’t aware of it. But how to choose genuine and authentic EO? Most of the aromatherapy practitioners will tell you to use your own organoleptic “odour” assessment when choosing a good quality of EO. You need to train your senses… When you are familiarizes with it, you will be automatically known how to choose the genuine and authentic quality of EO. But most of the consumer is not being train in this area. Therefore, he or she might have a big chances buying synthetic or adulteration EO. Therefore, I prepared some general guides as fo...