Often used in aromatherapy, essential oils are plant extracts that are used in alternative medicine to support emotional and physical wellbeing. Each essential oil has its own healing properties and is used for a different function. Here are the top 5 essential oils and their benefits. Peppermint: Peppermint is best for digestive problems and helps to ease irritable bowel syndrome symptoms as well as relieving feelings of nausea and upset stomach. Carrier oils you can include are:• Coconut oil• Sweet almond oil• Jojoba oil• Argan oil• Rosehip oil