It should be noted that the quality of an essential oil is important for its efficacy. Different brands use different aromatic concentrations. Not every brand places an emphasis on organic growing practices. You can find some great aromatic products at health food stores and organic markets. We know and trust our friends over at Mountain Rose Herbs. They grow all of their own herbs for their aromatic products. They use organic and GMO-free practices and offer over 100 different oils. You can also find some great organic aromatherapy kits online. This one from Edens Garden comes highly recommended.