Peppermint: Mentha piperita Physical Wellbeing 1. This oil is also excellent for nail care thereby preventing fungal nail infection. Beauty Applications 1. Peppermint oil contains menthol, which is good for the skin because it creates a cooling sensation. 2. Furthermore, it nourishes dull skin and improves the texture of oily or greasy skin. Emotional Wellbeing 1. Like most other essential oils, peppermint is refreshing nature. 2. It is also great at uplifting ones moods. 3. Peppermint is one of the "basic necessities' for a first aid kit. 4. It is one of the oils often recommended for easing headaches Warning 1. This oil is only for external use. 2. This oil is not to be used by pregnant women. 3. It is not suitable for children below the age of 10.