What is Aromatherapy?

Aromatherapy is a form of complementary and alternative medicine (CAM). It uses essential oils to manage symptoms or boost your well-being. It’s a holistic therapy, meaning it supports your whole self — mind, body and spirit. Aromatherapy involves inhaling essential oils or applying them (diluted) to your skin.

People around the world have used aromatherapy for centuries. Aromatherapy often complements other treatments for people with conditions like anxiety. People also use aromatherapy to maintain wellness and feel better in general.

How does aromatherapy work?

When inhaled, aromatherapy stimulates your nervous system (brain, spinal cord and nerves). This means aromatherapy starts a chain reaction of signals to your brain and chemical responses throughout your body. This activity begins once you start smelling an essential oil.

Essential oils (like all substances that smell) release tiny molecules into the air. When you inhale an essential oil, those molecules move into your nose. Special cells in your nose called olfactory receptors notice the molecules are there. In response, they send messages to your brain through your olfactory nerve.

These messages stimulate activity in your hypothalamus and your brain’s limbic system. Your limbic system is a group of structures (including the amygdala) that help control your emotions and store your memories. Your brain then releases hormones like: