How to use essential oils

Because essential oils are so strong, Dr. Lin recommends being mindful about why and how you’re using them. Only small amounts — typically just a few drops — are used.

“It’s also a good idea not to use them routinely, as your body can get used to them, lowering their effectiveness,” she says.
Here are some ways you can use essential oils:

Diffuse them

You can diffuse essential oils, which is a type of aromatherapy.

“It’s a great way to change your mood quickly. As you breathe in, the oil’s aroma immediately stimulates your central nervous system, triggering an emotional response,” explains Dr. Lin. “It can reduce anxiety and stress response quickly.”

Mix essential oils and water in an essential oil diffuser and turn on the magic. A diffuser is a device that disperses tiny oil particles around the room so you can breathe them in. Follow your diffuser’s directions for the right oil-to-water ratio.

There are several other aromatherapy methods. “Whichever method you choose, avoid direct contact with the essential oil and dilute it first,” says Dr. Lin.

Other aromatherapy methods include:

The old-fashioned way. Take deep breaths of the aroma after opening the bottle.
Dry evaporation. Put a few drops of essential oil on a cotton ball and smell the aroma as it disperses.
Steam inhalation. Put a few drops of essential oil in a bowl of hot water. Put your head over the bowl, a towel over your head and breathe in the steam.
One caveat is that aromatherapy may not work as well for older adults with dementia or behavior problems, Dr. Lin notes. That may be because people tend to experience loss of smell as they get older.

Roll directly on your skin

You can also reap the benefits by applying essential oils to your skin, where it’s absorbed into your body. But Dr. Lin cautions against directly applying most essential oils to your skin without diluting them.

“With few exceptions, it’s best to dilute the essential oil with a carrier oil, such as coconut or jojoba oil, to avoid skin irritation,” she says.

Some people put their essential oil blend into a small rollerball bottle for easier application.

Ingest them

Some people take essential oils orally in teas, supplements or even via a drop or two on their tongue.

“Unless you’re directed by a trained herbalist, I recommend against using them this way. Since they’re so strong, they may be harmful,” advises Dr. Lin. “Even with just a few drops of essential oil, you’re taking a lot of plant material without realizing it. They can even burn the mucosal lining in your mouth.”

Some food recipes call for essential oil like orange, but always check dosing and follow directions closely.

Be careful when using essential oils in children, people with weakened immune systems, pregnant people and seniors.

“Some essential oils can be harmful to the liver and nervous system when used in excess. Tea tree and eucalyptus oil have also been known to cause seizures,” warns Dr. Lin. “They’re toxic for animals as well.”