- Bring home, the magic of essential oils and feel fresh and rejuvenated whenever you want. The package contains 30ml of the product. Safety warnings: don’t use undiluted essential oils on pets, especially cats, as certain oils can be toxic to them. Use extra caution if you have a serious health condition or are pregnant. Educate yourself about the properties and contraindications of each oil before using it. Most uses of essential oil requires only a few drops. Most essential oils should not be used undiluted (except for lavender, tea tree, german, and geranium). Always dilute essential oils with a carrier oil (sweet almond, jojoba, sesame, grapeseed, etc.) Unless you know it is safe to use undiluted. To test if you are sensitive to a particular oil, combine 1 or 2 drops to a teaspoon of carrier oil in a small container. Dab a small amount to your wrist or the crook of your arm and wait for 24 hours.