Essential oils should always be diluted. In most cases, small amounts of the essential oils are added to a carrier oil such as jojoba, almond or apricot seed oil. You can get these carrier oils from the same supplier as your essential oils.
A dilution of 1 drop of the essential oil to 1 teaspoon of carrier oil is considered to be safe for most essential oils.
You can also make your own body lotion: Mix a couple of drops of the essential oil with an unscented body lotion (such as Cetaphil).
An essential oil can also be diluted with water. Just shake it frequently or the oil will accumulate at the top of the water. For certain applications, like spritzes, I prefer using aromatic waters because they don’t separate.
A spray is easily prepared by putting several drops of the essential oil in a spray bottle with water. Just make sure that you shake the spray well before use so the oil distributes equally. These sprays are intended more for aromatherapy rather than a body spray. However, with proper dilution you can use them also as refreshing body sprays.
You can buy small spray bottles and droppers at a craft store. I bought mine at Hobby Lobby in the Painting Supply section for very little.
Patch Test to Check for Allergic or Skin Reactions
Essential oils can cause skin irritation so check on a small skin area first (usually the inside of your arm) to see if you experience any skin reaction.
For these patch tests use a topical application that is a little stronger than the normal diluted oil (i.e. use 2 drops per ½ teaspoon). Cover the area and check after 48 hours if the skin becomes red, itchy or irritated.