Best Essential Oils For Anxiety. If you have a stressful day at work. This natural solution works by stimulating areas of the brain that are responsible for our emotions. anti-anxiety-essential-oil-combo | Young Living … (Bess Hopkins) Thus, choosing the best essential oils is vital. Please be sure to discuss your health. If you have a stressful day at work. Diffusion: Orange essential oil is one of the best essential oils to use in a diffuser