Determine how you plan to use the essential oil.

Determine how you plan to use the essential oil.
If you simply want to make an essential oil blend to use in an aromatherapy diffuser (a small table-top device provides continuous scent) or to store in a bottle for a variety of purposes, you will need a 10 mL small amber or blue glass bottle with a dropper cap. This essential oil blend should not be applied to skin undiluted.

If you would like to make a massage oil, you will need a bottle that holds between 4 fluid ounces (1/2 cup or 125 mL) and 8 fluid ounces (1 cup or 250 mL), depending on how much you would like to make. Again, amber or blue glass is preferred.