Fragrance Oils are manufactured oils. They can contain essential oils and many fragrance oils such as Orange and Lemon do. However, they will also contain synthetic ingredients to produce delicious fragrances such as Christmas Spice or Seaweed and Juniper or even Chocolate Orange. They are man made in a factory and while they may contain some natural ingredients they cannot boast a claim as being a "natural product."
Essential oils are pure and natural oils that are usually obtained by distillation from the originating plant. Many are available, all with different prices and all with different properties.
Both our fragrance and essential oils are concentrated and so should not be applied undiluted directly to the skin.
Fragrance Oils will produce a huge range of different scents. Whereas Essential Oils may have other therapeutic benefits.
Remember that if you are using Essential Oils to check that they are suitable for your application. Some oils for example have a limit to their usage in cosmetics.