Then there is Rosemarry oil which by the way you.will find in like skin care products you see it does have topical benefits and can also help to extend the shelf life of the product also and one really good benefit is that rosemarry oil can decrease the levels of the stress hormone cortisol too,and is a very good stimulant when inhaled your heart rate and blood pressure wilk increase and can nelp to boost your immune system too plus as and added benefit it can help to increase your brain waves also and to help with your nervous system that controls your organs functions too,but if you are stressed out try this oil it will really help you to find some peace of mind plus try to mix it with eucalyptus you see when you mix the rosemarry oil and eucalyptus you will have a room that smells like if ou were in a forest for sure so try it.