Beeyoutiful's line of single essential oils started with a good group of core essential oils that are generally considered the most popular and mainstays. The line has continued to grow and expand, often taking our customers suggestions and turning them into reality. All of our oils have available on their individual webpages the Latin Species, plant part used, country of origin, and GC/MS testing from our supplier. They are 100% Pure & Natural and are reviewed by a Certified Aromatherapist.