The essential oil to aid concentration!
 
Improving focus, hence a useful oil to assist children who struggle to focus at school, helping one to focus on one task at a time.  Also assists with dispelling confusion and aiding with clarity.  Lemon will assist with mental fatigue, giving the user extra energy to finish a project.
 
Lemon essential oil can also be used for athletes foot, flu and blemishes.  A very versatile essential oil to have in your arsenal.