Stress effects an individual’s health and well-being (Schneiderman 2008). In modern society common mental health disorders are ever growing, however contact with nature in a variety of forms reduces stress and promotes health (Seidman, 2015). This study explored an essential oil extracted from trees: Cedar wood Oil, and the affect it has on nine healthy participants after being exposed to a stressor. Participants were exposed to three different conditions (Cedar wood oil, Placebo or Controlled) on different days. They were unaware when they were exposed to the oil to see if it aided a reduction of stress after being exposed to the stressor (maths test.) Many theoretical suggestions are discussed on the topic essential oils reduce stress and so during this study it is hypothesised that statistical difference will be found in the measures of; heart rate, heart rate variability, blood pressure and perceived stress rate, to decrease levels of stress when participants’ are exposed to the cedar wood oil. The findings reveal tentative evidence that cedar wood oil holds restorative properties when stress increases. A key finding was establish in participants’ perceived stress state p<0.0005 where participants’ stress significantly decreased after recovering from the stressor whilst inhaling the cedar wood oil. A significant decrease was also found in the participant’s systolic blood pressure p=0.003 when exposed to the oil, however no other differences were found in the participants’ physiological stress response of heart rate or heart rate variability. Over all cedar wood oil can assist in reducing an individuals’ perception of stress, thus over a long time can foresee and expect reductions in the amount of stress responding in the body and mind, to improve overall health and well-being in individuals who suffers from stress.