Synergy. What does it mean? Essential oil blending is all about creating synergy – getting the oils to work together whether it is aromatically, therapeutically, or philosophically. Jennifer Peace Rhind (2016) writes that “synergistic blending is at the very heart of aromatherapy practice.” Put simply, creating an oil combination which does its job. Essential oils contain active ingredients so when we add 2 or more oils together, the outcome can be different to when the oils are applied singly. There is a growing body of evidence to support the therapeutic benefits of synergy. For example, a recent study explored the impact of antimicrobial blends – oil blends that kill bacteria and fungus. The study focused on combinations with Lavender, for example Lavender with Cypress, with May chang, with Cinnamon, and with Sweet orange. Interestingly, Sweet orange has poor antimicrobial activity but when combined with Lavender it had positive benefits for respiratory infections. Therefore, combining these oils in a diffuser could be helpful for those suffering from tonsillitis, pharyngitis, laryngitis, sinusitis, certain types of influenza, or the common cold. Add 1 drop of Lavender, 1 drop of Sweet orange to a oil burner, or 3 of each in a diffuser. Alternatively, add up to 4 drops of each in a warm bath. Activate those healing chemicals and feel the benefit of synergism.