1. Rosemary  
Rosemary oils are found to be stimulative. It is said to help increase alertness and in a 2018 study, rosemary is found to help 
boost memory and focus.
2. Lemon 
The lemon scent helps to increase focus and a Japanese study on how smells can affect typists’ accuracy concluded that those
who worked in lemon-scented workplaces made 54% lesser errors. According to Natural Health Magazine, scientists have also 
found that “just a whiff of lemon can boost your feel-good hormones and reduce stress levels.”
3. Peppermint 
The spicy peppermint scent helps to improve your ability to focus and can boost alertness and memory. When you
find yourself constantly distracted by your surroundings, perhaps it is time to diffuse some peppermint 
essential oils in your office.
4. Coffee 
While most people drink coffee for that caffeine energy boost, the coffee scent alone is said to help people 
perform better on analytical reasoning tasks. According to FragranceX, “the smell had a similar effect to (as)
if they had ingested the coffee.”
5. Lavender 
Lavender is commonly used for relaxation and for falling asleep faster. But did you know that when "lavender
essential oil [was inhaled] before doing math problems helped subjects complete the problems faster and more 
accurately.” The lavender scent is also said to decrease the stress hormone, cortisol, which caused us to bemore irritable and less focused.
6. Sage 
In a study, Spanish sage essential oil is found to help enhance memory and stimulate brain function, and the scent “significantly 
improved immediate word recall” in the study’s participants. The robust scent of sage is also said to help reduce stress and anxiety,
elevating moods.
7. Vetiver 
Inhaling vetiver scent improves alertness and brain function. A 2016 study also concluded that “the stimulating 
effects of vetiver essential oil might be beneficial for learning and memory processes” and can be used as a 
stimulant to improve task performance.