The top selling Doterra product is their essential oils. The company offers a wide variety of essential oils extracted from plants, which are widely used for their therapeutic benefits including promoting relaxation, uplifting mood, and supporting a healthy immune system. Some of the most popular essential oils sold by Doterra are lavender, peppermint, lemon, and frankincense. The company also offers blends of essential oils with specific benefits, such as their On Guard blend for immune support and their Serenity blend for relaxation.