Rosemary Oil a field guide

How to use rosemary oil

Rosemary essential oil is used for its scent: a few drops in a diffuser, a bath, a body oil or a household cleaning spray, always diluted before it touches skin. Here is how many drops for each, and what it blends with.

In a diffuser

Follow your diffuser's own instructions first. As a guideline, 3 to 5 drops for every 100 mL of water in the tank. Run it for 30 to 60 minutes, then rest it for as long. It mixes well with lavender here, and is used to freshen a bathroom, or a kitchen after cooking.

The 3 to 5 drops are a guideline from the Tisserand Institute's support team; the timing is from the Tisserand Institute's safety guidelines.

In the bath

Never put drops straight into the water. Stir them into a carrier oil or an unscented bath gel first, then add that to the bath. The Tisserand Institute's range for bath products is 2 to 4%. This guide's own example amount is 1 tablespoon (15 mL) of carrier, which at 2 to 4% takes 9 to 18 drops.

In a body oil

Blend it with sweet almond, jojoba or coconut oil; the store names almond as the lightest. The Tisserand Institute's range for body oils is 1 to 3%, and 2% is usual: 18 drops in a 30 mL bottle.

Around the house

For a household cleaning spray, the store suggests mixing it with hot water, vinegar, lemon oil and lemon juice. It also goes into a homemade candle.

Oils it blends with

  • Lemon
  • Lavender
  • Pine
  • Fennel
  • Geranium

Questions

Questions about using rosemary oil

What is rosemary oil good for?
For its scent, and around the home. The diffuser, the bath and the body oil are above, with their drops; the cleaning spray is the store's suggestion, without amounts; the scalp oil is on the page about rosemary oil for hair.
What is organic rosemary oil good for?
The same uses. Organic describes how the plants were grown, not what the oil does.
What not to do with rosemary oil?
Do not put it on skin undiluted, and do not drop it straight into bath water. Keep it away from eyes. Do not swallow it. Keep it out of reach of children.

The mixer

Drops of rosemary oil, by what you are making

Choose what you are making and the size of your bottle. It works out the drops and makes a label for your bottle, to print, cut out and keep.

What you are making
Bottle size

Drops of rosemary oil, by what you are making and the size of the bottle. Body oil and bath strengths from the Tisserand Institute's dilution guide. Drops are approximate: this counts 30 to the millilitre, as their chart does, rounded down.
MakingStrength10 mL30 mL50 mL100 mL
Body oil2%6183060
Bath3%13 drops in 1 tablespoon (15 mL) of carrier oil, per bath. The tablespoon is this guide's own example amount.
DiffuserFollow your diffuser's own instructions first. As a guideline, 3 to 5 drops for every 100 mL of water, from the Tisserand Institute's support team.

The rest of the guide

Rosemary oil, 10 mL, $21.95, from Essentially