Peppermint essential oil
I have lots of essential and fragrance oils for burning like, rose, gardenia, frankincense, lavender, orange, cinnamon, rosemary, patchouli, cedarwood. My favorite one is peppermint. I burn it when I need to have a clear head, so I burn it when I'm working from home. I like the fresh, clean, pepper-minty aroma that wakes up my senses. It seems to keep me on my toes and focused.