Peppermint is minty, strong and fresh oil with cooling, refreshing and deodorant properties. Peppermint's cooling power comes from the high percentage of menthol in its leaves. Menthol has antibacterial properties and is used externally in liniments to stimulate nerve endings and increase local blood flow. Peppermint leaves have been found in Egyptian pyramids dating as far back as 1000 BC. It is a good treatment eczema, dermatitis, inflammation, muscle aches and dandruff. In hair care products, peppermint refreshes and stimulates the scalp promoting blood circulation which stimulates growth. Aromatherapy Properties: the uplifting, invigorating and stimulating scent helps promote concentration and memory, and relieve mental fatigue, apathy, headaches, and depression. Keep peppermint essential oil or a sliver of peppermint soap in your car when traveling, the scent of peppermint is excellent for stuffy heads, motion sickness, headaches, and nausea. Peppermint essential oil aromatherapy should not be used in early pregnancy.