Chamomile is most widely used as a calming agent, because it has been found to both reduce irritability and lower blood pressure. It is also known to remove toxins and cool the body, resulting in relief from fever.

Kava leaves are known to relieve restlessness and induce a state of sedation. There are studies that show Kava may be an immune system booster, because of its flavokavain properties.

Lavender is a calming, soothing sedative. It improves the quality of sleep. Some say that it eases muscle discomfort, and studies show a decrease in computer errors when exposed to Lavender.